diff --git a/abstract_client.h b/abstract_client.h
index 473ee91d45..3fa4d953bc 100644
--- a/abstract_client.h
+++ b/abstract_client.h
@@ -161,6 +161,11 @@ class AbstractClient : public Toplevel
      * Because of that no changed signal is provided.
      **/
     Q_PROPERTY(bool wantsInput READ wantsInput)
+    /**
+     * Whether the Client is a transient Window to another Window.
+     * @see transientFor
+     **/
+    Q_PROPERTY(bool transient READ isTransient NOTIFY transientChanged)
 public:
     virtual ~AbstractClient();
 
@@ -402,6 +407,7 @@ Q_SIGNALS:
     void captionChanged();
     void clientMaximizedStateChanged(KWin::AbstractClient*, MaximizeMode);
     void clientMaximizedStateChanged(KWin::AbstractClient* c, bool h, bool v);
+    void transientChanged();
 
 protected:
     AbstractClient();
diff --git a/client.h b/client.h
index 8a82545b53..cd2930a4a8 100644
--- a/client.h
+++ b/client.h
@@ -113,11 +113,6 @@ class Client
      * Because of that there is no notify signal.
      **/
     Q_PROPERTY(bool resizeable READ isResizable)
-    /**
-     * Whether the Client is a transient Window to another Window.
-     * @see transientFor
-     **/
-    Q_PROPERTY(bool transient READ isTransient NOTIFY transientChanged)
     /**
      * The Client to which this Client is a transient if any.
      **/
@@ -556,7 +551,6 @@ Q_SIGNALS:
     void clientStartUserMovedResized(KWin::Client*);
     void clientStepUserMovedResized(KWin::Client *, const QRect&);
     void clientFinishUserMovedResized(KWin::Client*);
-    void transientChanged();
     void modalChanged();
     void moveResizedChanged();