diff --git a/client.h b/client.h
--- a/client.h
+++ b/client.h
@@ -392,9 +392,6 @@
     QSize resizeIncrements() const override;
     bool acceptsFocus() const override;
 
-private Q_SLOTS:
-    void delayedSetShortcut();
-
     //Signals for the scripting interface
     //Signals make an excellent way for communication
     //in between objects as compared to simple function
diff --git a/useractions.cpp b/useractions.cpp
--- a/useractions.cpp
+++ b/useractions.cpp
@@ -1055,11 +1055,7 @@
             action->setProperty("componentName", QStringLiteral(KWIN_NAME));
             action->setObjectName(key);
             action->setText(i18n("Activate Window (%1)", c->caption()));
-            connect(action, &QAction::triggered, c,
-                [c]() {
-                    workspace()->activateClient(c, true);
-                }
-            );
+            connect(action, &QAction::triggered, c, std::bind(&Workspace::activateClient, this, c, true));
         }
 
         // no autoloading, since it's configured explicitly here and is not meant to be reused
@@ -1842,15 +1838,10 @@
     // Workaround for kwin<->kglobalaccel deadlock, when KWin has X grab and the kded
     // kglobalaccel module tries to create the key grab. KWin should preferably grab
     // they keys itself anyway :(.
-    QTimer::singleShot(0, this, SLOT(delayedSetShortcut()));
+    QTimer::singleShot(0, this, std::bind(&Workspace::clientShortcutUpdated, workspace(), this));
 #endif
 }
 
-void Client::delayedSetShortcut()
-{
-    workspace()->clientShortcutUpdated(this);
-}
-
 bool Workspace::shortcutAvailable(const QKeySequence &cut, AbstractClient* ignore) const
 {
     if (ignore && cut == ignore->shortcut())