diff --git a/autotests/integration/internal_window.cpp b/autotests/integration/internal_window.cpp
--- a/autotests/integration/internal_window.cpp
+++ b/autotests/integration/internal_window.cpp
@@ -605,13 +605,13 @@
     QVERIFY(internalClient->isDecorated());
 
     KConfigGroup group = kwinApp()->config()->group("MouseBindings");
-    group.writeEntry("CommandAllKey", "Alt");
+    group.writeEntry("CommandAllKey", "Meta");
     group.writeEntry("CommandAll1", "Move");
     group.writeEntry("CommandAll2", "Move");
     group.writeEntry("CommandAll3", "Move");
     group.sync();
     workspace()->slotReconfigure();
-    QCOMPARE(options->commandAllModifier(), Qt::AltModifier);
+    QCOMPARE(options->commandAllModifier(), Qt::MetaModifier);
     QCOMPARE(options->commandAll1(), Options::MouseUnrestrictedMove);
     QCOMPARE(options->commandAll2(), Options::MouseUnrestrictedMove);
     QCOMPARE(options->commandAll3(), Options::MouseUnrestrictedMove);
@@ -621,12 +621,12 @@
 
     // simulate modifier+click
     quint32 timestamp = 1;
-    kwinApp()->platform()->keyboardKeyPressed(KEY_LEFTALT, timestamp++);
+    kwinApp()->platform()->keyboardKeyPressed(KEY_LEFTMETA, timestamp++);
     QVERIFY(!internalClient->isMove());
     kwinApp()->platform()->pointerButtonPressed(BTN_LEFT, timestamp++);
     QVERIFY(internalClient->isMove());
     // release modifier should not change it
-    kwinApp()->platform()->keyboardKeyReleased(KEY_LEFTALT, timestamp++);
+    kwinApp()->platform()->keyboardKeyReleased(KEY_LEFTMETA, timestamp++);
     QVERIFY(internalClient->isMove());
     // but releasing the key should end move/resize
     kwinApp()->platform()->pointerButtonReleased(BTN_LEFT, timestamp++);
@@ -647,7 +647,7 @@
     QVERIFY(internalClient->isDecorated());
 
     KConfigGroup group = kwinApp()->config()->group("MouseBindings");
-    group.writeEntry("CommandAllKey", "Alt");
+    group.writeEntry("CommandAllKey", "Meta");
     group.writeEntry("CommandAllWheel", "change opacity");
     group.sync();
     workspace()->slotReconfigure();
@@ -659,12 +659,12 @@
     internalClient->setOpacity(0.5);
     QCOMPARE(internalClient->opacity(), 0.5);
     quint32 timestamp = 1;
-    kwinApp()->platform()->keyboardKeyPressed(KEY_LEFTALT, timestamp++);
+    kwinApp()->platform()->keyboardKeyPressed(KEY_LEFTMETA, timestamp++);
     kwinApp()->platform()->pointerAxisVertical(-5, timestamp++);
     QCOMPARE(internalClient->opacity(), 0.6);
     kwinApp()->platform()->pointerAxisVertical(5, timestamp++);
     QCOMPARE(internalClient->opacity(), 0.5);
-    kwinApp()->platform()->keyboardKeyReleased(KEY_LEFTALT, timestamp++);
+    kwinApp()->platform()->keyboardKeyReleased(KEY_LEFTMETA, timestamp++);
 }
 
 void InternalWindowTest::testPopup()
diff --git a/autotests/integration/pointer_constraints_test.cpp b/autotests/integration/pointer_constraints_test.cpp
--- a/autotests/integration/pointer_constraints_test.cpp
+++ b/autotests/integration/pointer_constraints_test.cpp
@@ -179,14 +179,14 @@
     // modifier + click should be ignored
     // first ensure the settings are ok
     KConfigGroup group = kwinApp()->config()->group("MouseBindings");
-    group.writeEntry("CommandAllKey", QStringLiteral("Alt"));
+    group.writeEntry("CommandAllKey", QStringLiteral("Meta"));
     group.writeEntry("CommandAll1", "Move");
     group.writeEntry("CommandAll2", "Move");
     group.writeEntry("CommandAll3", "Move");
     group.writeEntry("CommandAllWheel", "change opacity");
     group.sync();
     workspace()->slotReconfigure();
-    QCOMPARE(options->commandAllModifier(), Qt::AltModifier);
+    QCOMPARE(options->commandAllModifier(), Qt::MetaModifier);
     QCOMPARE(options->commandAll1(), Options::MouseUnrestrictedMove);
     QCOMPARE(options->commandAll2(), Options::MouseUnrestrictedMove);
     QCOMPARE(options->commandAll3(), Options::MouseUnrestrictedMove);
diff --git a/autotests/integration/pointer_input.cpp b/autotests/integration/pointer_input.cpp
--- a/autotests/integration/pointer_input.cpp
+++ b/autotests/integration/pointer_input.cpp
@@ -485,13 +485,13 @@
 
     // first modify the config for this run
     KConfigGroup group = kwinApp()->config()->group("MouseBindings");
-    group.writeEntry("CommandAllKey", "Alt");
+    group.writeEntry("CommandAllKey", "Meta");
     group.writeEntry("CommandAll1", "Move");
     group.writeEntry("CommandAll2", "Move");
     group.writeEntry("CommandAll3", "Move");
     group.sync();
     workspace()->slotReconfigure();
-    QCOMPARE(options->commandAllModifier(), Qt::AltModifier);
+    QCOMPARE(options->commandAllModifier(), Qt::MetaModifier);
     QCOMPARE(options->commandAll1(), Options::MouseUnrestrictedMove);
     QCOMPARE(options->commandAll2(), Options::MouseUnrestrictedMove);
     QCOMPARE(options->commandAll3(), Options::MouseUnrestrictedMove);
@@ -518,12 +518,12 @@
 
     // simulate modifier+click
     quint32 timestamp = 1;
-    kwinApp()->platform()->keyboardKeyPressed(KEY_LEFTALT, timestamp++);
+    kwinApp()->platform()->keyboardKeyPressed(KEY_LEFTMETA, timestamp++);
     QVERIFY(!window->isMove());
     kwinApp()->platform()->pointerButtonPressed(BTN_LEFT, timestamp++);
     QVERIFY(!window->isMove());
     // release modifier should not change it
-    kwinApp()->platform()->keyboardKeyReleased(KEY_LEFTALT, timestamp++);
+    kwinApp()->platform()->keyboardKeyReleased(KEY_LEFTMETA, timestamp++);
     QVERIFY(!window->isMove());
     kwinApp()->platform()->pointerButtonReleased(BTN_LEFT, timestamp++);
 
@@ -623,7 +623,7 @@
 
     // first modify the config for this run
     KConfigGroup group = kwinApp()->config()->group("MouseBindings");
-    group.writeEntry("CommandAllKey", "Alt");
+    group.writeEntry("CommandAllKey", "Meta");
     group.writeEntry("CommandAllWheel", "change opacity");
     group.sync();
     workspace()->slotReconfigure();
@@ -653,12 +653,12 @@
 
     // simulate modifier+wheel
     quint32 timestamp = 1;
-    kwinApp()->platform()->keyboardKeyPressed(KEY_LEFTALT, timestamp++);
+    kwinApp()->platform()->keyboardKeyPressed(KEY_LEFTMETA, timestamp++);
     kwinApp()->platform()->pointerAxisVertical(-5, timestamp++);
     QCOMPARE(window->opacity(), 0.5);
     kwinApp()->platform()->pointerAxisVertical(5, timestamp++);
     QCOMPARE(window->opacity(), 0.5);
-    kwinApp()->platform()->keyboardKeyReleased(KEY_LEFTALT, timestamp++);
+    kwinApp()->platform()->keyboardKeyReleased(KEY_LEFTMETA, timestamp++);
 
     workspace()->disableGlobalShortcutsForClient(false);
 }
@@ -1487,11 +1487,11 @@
 
     // first modify the config for this run
     KConfigGroup group = kwinApp()->config()->group("MouseBindings");
-    group.writeEntry("CommandAllKey", "Alt");
+    group.writeEntry("CommandAllKey", "Meta");
     group.writeEntry("CommandAll3", "Resize");
     group.sync();
     workspace()->slotReconfigure();
-    QCOMPARE(options->commandAllModifier(), Qt::AltModifier);
+    QCOMPARE(options->commandAllModifier(), Qt::MetaModifier);
     QCOMPARE(options->commandAll3(), Options::MouseUnrestrictedResize);
 
     // create a test client
@@ -1532,7 +1532,7 @@
 
     // start resizing the client
     int timestamp = 1;
-    kwinApp()->platform()->keyboardKeyPressed(KEY_LEFTALT, timestamp++);
+    kwinApp()->platform()->keyboardKeyPressed(KEY_LEFTMETA, timestamp++);
     kwinApp()->platform()->pointerButtonPressed(BTN_RIGHT, timestamp++);
     QVERIFY(c->isResize());
 
@@ -1543,7 +1543,7 @@
     QCOMPARE(kwinApp()->platform()->cursorImage().hotSpot(), resizeCursor.hotSpot());
 
     // finish resizing the client
-    kwinApp()->platform()->keyboardKeyReleased(KEY_LEFTALT, timestamp++);
+    kwinApp()->platform()->keyboardKeyReleased(KEY_LEFTMETA, timestamp++);
     kwinApp()->platform()->pointerButtonReleased(BTN_RIGHT, timestamp++);
     QVERIFY(!c->isResize());
 
@@ -1557,11 +1557,11 @@
 
     // first modify the config for this run
     KConfigGroup group = kwinApp()->config()->group("MouseBindings");
-    group.writeEntry("CommandAllKey", "Alt");
+    group.writeEntry("CommandAllKey", "Meta");
     group.writeEntry("CommandAll1", "Move");
     group.sync();
     workspace()->slotReconfigure();
-    QCOMPARE(options->commandAllModifier(), Qt::AltModifier);
+    QCOMPARE(options->commandAllModifier(), Qt::MetaModifier);
     QCOMPARE(options->commandAll1(), Options::MouseUnrestrictedMove);
 
     // create a test client
@@ -1583,7 +1583,7 @@
 
     // start moving the client
     int timestamp = 1;
-    kwinApp()->platform()->keyboardKeyPressed(KEY_LEFTALT, timestamp++);
+    kwinApp()->platform()->keyboardKeyPressed(KEY_LEFTMETA, timestamp++);
     kwinApp()->platform()->pointerButtonPressed(BTN_LEFT, timestamp++);
     QVERIFY(c->isMove());
 
@@ -1593,7 +1593,7 @@
     QCOMPARE(kwinApp()->platform()->cursorImage().hotSpot(), sizeAllCursor.hotSpot());
 
     // finish moving the client
-    kwinApp()->platform()->keyboardKeyReleased(KEY_LEFTALT, timestamp++);
+    kwinApp()->platform()->keyboardKeyReleased(KEY_LEFTMETA, timestamp++);
     kwinApp()->platform()->pointerButtonReleased(BTN_LEFT, timestamp++);
     QVERIFY(!c->isMove());
 
diff --git a/kcmkwin/kwinoptions/actions.ui b/kcmkwin/kwinoptions/actions.ui
--- a/kcmkwin/kwinoptions/actions.ui
+++ b/kcmkwin/kwinoptions/actions.ui
@@ -206,12 +206,12 @@
           </property>
           <item>
            <property name="text">
-            <string>Alt</string>
+            <string>Meta</string>
            </property>
           </item>
           <item>
            <property name="text">
-            <string>Meta</string>
+            <string>Alt</string>
            </property>
           </item>
          </widget>
diff --git a/kcmkwin/kwinoptions/kwinoptions_settings.kcfg b/kcmkwin/kwinoptions/kwinoptions_settings.kcfg
--- a/kcmkwin/kwinoptions/kwinoptions_settings.kcfg
+++ b/kcmkwin/kwinoptions/kwinoptions_settings.kcfg
@@ -296,10 +296,10 @@
     </entry>
 
     <entry key="CommandAllKey" type="Enum">
-      <default>Alt</default>
+      <default>Meta</default>
       <choices>
-          <choice name="Alt"></choice>
           <choice name="Meta"></choice>
+          <choice name="Alt"></choice>
       </choices>
     </entry>
 
diff --git a/kwin.kcfg b/kwin.kcfg
--- a/kwin.kcfg
+++ b/kwin.kcfg
@@ -9,7 +9,7 @@
             <default>Nothing</default>
         </entry>
         <entry name="CommandAllKey" type="String">
-            <default>Alt</default>
+            <default>Meta</default>
         </entry>
         <entry name="CommandAllWheel" type="String">
             <default>Nothing</default>
diff --git a/options.cpp b/options.cpp
--- a/options.cpp
+++ b/options.cpp
@@ -765,7 +765,7 @@
     config = KConfigGroup(m_settings->config(), "MouseBindings");
     // TODO: add properties for missing options
     CmdTitlebarWheel = mouseWheelCommand(config.readEntry("CommandTitlebarWheel", "Nothing"));
-    CmdAllModKey = (config.readEntry("CommandAllKey", "Alt") == QStringLiteral("Meta")) ? Qt::Key_Meta : Qt::Key_Alt;
+    CmdAllModKey = (config.readEntry("CommandAllKey", "Meta") == QStringLiteral("Meta")) ? Qt::Key_Meta : Qt::Key_Alt;
     CmdAllWheel = mouseWheelCommand(config.readEntry("CommandAllWheel", "Nothing"));
     setCommandActiveTitlebar1(mouseCommand(config.readEntry("CommandActiveTitlebar1", "Raise"), true));
     setCommandActiveTitlebar2(mouseCommand(config.readEntry("CommandActiveTitlebar2", "Nothing"), true));