diff --git a/appmenu.cpp b/appmenu.cpp
index ba53f1d17f..05a78f1d8b 100644
--- a/appmenu.cpp
+++ b/appmenu.cpp
@@ -29,9 +29,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 namespace KWin {
 
-static const char *KDED_SERVICE = "org.kde.kded";
-static const char *KDED_APPMENU_PATH = "/modules/appmenu";
-static const char *KDED_INTERFACE = "org.kde.kded";
+static QString KDED_SERVICE = QStringLiteral("org.kde.kded");
+static QString KDED_APPMENU_PATH = QStringLiteral("/modules/appmenu");
+static QString KDED_INTERFACE = QStringLiteral("org.kde.kded");
 
 KWIN_SINGLETON_FACTORY(ApplicationMenu)
 
@@ -39,13 +39,13 @@ ApplicationMenu::ApplicationMenu(QObject *parent)
     : QObject(parent)
 {
     QDBusConnection dbus = QDBusConnection::sessionBus();
-    dbus.connect(KDED_SERVICE, KDED_APPMENU_PATH, KDED_INTERFACE, "showRequest",
+    dbus.connect(KDED_SERVICE, KDED_APPMENU_PATH, KDED_INTERFACE, QStringLiteral("showRequest"),
                  this, SLOT(slotShowRequest(qulonglong)));
-    dbus.connect(KDED_SERVICE, KDED_APPMENU_PATH, KDED_INTERFACE, "menuAvailable",
+    dbus.connect(KDED_SERVICE, KDED_APPMENU_PATH, KDED_INTERFACE, QStringLiteral("menuAvailable"),
                  this, SLOT(slotMenuAvailable(qulonglong)));
-    dbus.connect(KDED_SERVICE, KDED_APPMENU_PATH, KDED_INTERFACE, "menuHidden",
+    dbus.connect(KDED_SERVICE, KDED_APPMENU_PATH, KDED_INTERFACE, QStringLiteral("menuHidden"),
                  this, SLOT(slotMenuHidden(qulonglong)));
-    dbus.connect(KDED_SERVICE, KDED_APPMENU_PATH, KDED_INTERFACE, "clearMenus",
+    dbus.connect(KDED_SERVICE, KDED_APPMENU_PATH, KDED_INTERFACE, QStringLiteral("clearMenus"),
                  this, SLOT(slotClearMenus()));
 }
 
@@ -89,7 +89,7 @@ void ApplicationMenu::slotClearMenus()
 void ApplicationMenu::showApplicationMenu(const QPoint &p, const xcb_window_t id)
 {
     QList<QVariant> args = QList<QVariant>() << p.x() << p.y() << qulonglong(id);
-    QDBusMessage method = QDBusMessage::createMethodCall(KDED_SERVICE, KDED_APPMENU_PATH, KDED_INTERFACE, "showMenu");
+    QDBusMessage method = QDBusMessage::createMethodCall(KDED_SERVICE, KDED_APPMENU_PATH, KDED_INTERFACE, QStringLiteral("showMenu"));
     method.setArguments(args);
     QDBusConnection::sessionBus().asyncCall(method);
 }