diff --git a/scripting/scriptingutils.h b/scripting/scriptingutils.h
index 2e04b33198..5213be7667 100644
--- a/scripting/scriptingutils.h
+++ b/scripting/scriptingutils.h
@@ -115,9 +115,11 @@ QScriptValue globalShortcut(QScriptContext *context, QScriptEngine *engine)
         return engine->undefinedValue();
     }
     KActionCollection* actionCollection = new KActionCollection(script);
-    KAction* a = (KAction*)actionCollection->addAction(context->argument(0).toString());
+    QAction* a = actionCollection->addAction(context->argument(0).toString());
     a->setText(context->argument(1).toString());
+#if KWIN_QT5_PORTING
     a->setGlobalShortcut(KShortcut(context->argument(2).toString()));
+#endif
     script->registerShortcut(a, context->argument(3));
     return engine->newVariant(true);
 }
diff --git a/tabbox/tabbox.cpp b/tabbox/tabbox.cpp
index 3c416f9ad9..3d5cbf4427 100644
--- a/tabbox/tabbox.cpp
+++ b/tabbox/tabbox.cpp
@@ -492,7 +492,7 @@ void TabBox::handlerReady()
 
 void TabBox::initShortcuts(KActionCollection* keys)
 {
-    KAction *a = NULL;
+    QAction *a = NULL;
 
     // The setGlobalShortcut(shortcut); shortcut = a->globalShortcut()
     // sequence is necessary in the case where the user has defined a
@@ -502,7 +502,7 @@ void TabBox::initShortcuts(KActionCollection* keys)
     a->setText( i18n(name) );                                                   \
     shortcut = KShortcut(key);                                                  \
     qobject_cast<KAction*>( a )->setGlobalShortcut(shortcut);                   \
-    shortcut = a->globalShortcut();                                             \
+    shortcut = qobject_cast<KAction*>( a )->globalShortcut();                   \
     connect(a, SIGNAL(triggered(bool)), SLOT(fnSlot));                          \
     connect(a, SIGNAL(globalShortcutChanged(QKeySequence)), SLOT(shortcutSlot));
 
diff --git a/virtualdesktops.cpp b/virtualdesktops.cpp
index 795ae671d8..63e85f3f6f 100644
--- a/virtualdesktops.cpp
+++ b/virtualdesktops.cpp
@@ -24,6 +24,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <KDE/KActionCollection>
 #include <KDE/KConfigGroup>
 #include <KDE/KLocalizedString>
+#include <KDE/KShortcut>
 #include <KDE/NETRootInfo>
 
 namespace KWin {
@@ -420,7 +421,7 @@ void VirtualDesktopManager::setNETDesktopLayout(Qt::Orientation orientation, uin
 
 void VirtualDesktopManager::initShortcuts(KActionCollection *keys)
 {
-    KAction *a = keys->addAction(QStringLiteral("Group:Desktop Switching"));
+    QAction *a = keys->addAction(QStringLiteral("Group:Desktop Switching"));
     a->setText(i18n("Desktop Switching"));
     initSwitchToShortcuts(keys);
 
@@ -448,16 +449,20 @@ void VirtualDesktopManager::initSwitchToShortcuts(KActionCollection *keys)
 
 void VirtualDesktopManager::addAction(KActionCollection *keys, const QString &name, const KLocalizedString &label, uint value, const KShortcut &key, const char *slot)
 {
-    KAction *a = keys->addAction(name.arg(value), this, slot);
+    QAction *a = keys->addAction(name.arg(value), this, slot);
     a->setText(label.subs(value).toString());
+#if KWIN_QT5_PORTING
     a->setGlobalShortcut(key);
+#endif
     a->setData(value);
 }
 
 void VirtualDesktopManager::addAction(KActionCollection *keys, const QString &name, const QString &label, const char *slot)
 {
-    KAction *a = keys->addAction(name, this, slot);
+    QAction *a = keys->addAction(name, this, slot);
+#if KWIN_QT5_PORTING
     a->setGlobalShortcut(KShortcut());
+#endif
     a->setText(label);
 }