diff --git a/autotests/testscreenconfig.cpp b/autotests/testscreenconfig.cpp
--- a/autotests/testscreenconfig.cpp
+++ b/autotests/testscreenconfig.cpp
@@ -156,7 +156,7 @@
     QCOMPARE(output->type(), Output::HDMI);
     QCOMPARE(output->modes().count(), 4);
     QCOMPARE(output->pos(), QPoint(1280, 0));
-    QCOMPARE(output->geometry(), QRect(1280, 0, 1920 / 1.4, 1080 / 1.4));
+    QCOMPARE(output->geometry(), QRect(1280, 0, 1920, 1080));
     QCOMPARE(output->currentModeId(), QLatin1String("4"));
     QCOMPARE(output->preferredModeId(), QLatin1String("4"));
     QCOMPARE(output->rotation(), Output::None);
diff --git a/backends/kwayland/waylandoutput.cpp b/backends/kwayland/waylandoutput.cpp
--- a/backends/kwayland/waylandoutput.cpp
+++ b/backends/kwayland/waylandoutput.cpp
@@ -148,7 +148,7 @@
 
         mode->setId(modeid);
         mode->setRefreshRate(m.refreshRate);
-        mode->setSize(m.size);
+        mode->setSize(m.size / m_output->scale());
         mode->setName(modename);
         if (m.flags.testFlag(KWayland::Client::OutputDevice::Mode::Flag::Current)) {
             currentModeId = modeid;
diff --git a/src/output.h b/src/output.h
--- a/src/output.h
+++ b/src/output.h
@@ -184,13 +184,15 @@
          * Returns a rectangle containing the currently set output position and
          * size.
          *
-         * The geometry also reflects current orientation (i.e. if current mode
+         * The geometry reflects current orientation (i.e. if current mode
          * is 1920x1080 and orientation is @p KScreen::Output::Left, then the
-         * size of the returned rectangle will be 1080x1920.
+         * size of the returned rectangle will be 1080x1920) and current scale
+         * (i.e. if scale is 1.5 then geometry() of an output with mode 1920x1080
+         * will be 2880x1620).
          *
          * This property contains the current settings stored in the particular
-         * Output object, so it is updated even when user changes current mode
-         * or orientation without applying the whole config/
+         * Output object, so it is updated even when user changes current mode,
+         * orientation or scale without applying the whole config/
          */
         QRect geometry() const;
 
diff --git a/src/output.cpp b/src/output.cpp
--- a/src/output.cpp
+++ b/src/output.cpp
@@ -489,7 +489,7 @@
     // actual rotation() set by caller, it's only updated when we get update from
     // KScreen, but not when user changes mode or rotation manually
 
-    QSize size = currentMode()->size() / d->scale;
+    QSize size = currentMode()->size() * d->scale;
     if (!isHorizontal()) {
         size = size.transposed();
     }