diff --git a/abstract_client.h b/abstract_client.h
index d8384bb9cd..733aff9000 100644
--- a/abstract_client.h
+++ b/abstract_client.h
@@ -204,6 +204,13 @@ class KWIN_EXPORT AbstractClient : public Toplevel
      * Whether the decoration is currently using an alpha channel.
      **/
     Q_PROPERTY(bool decorationHasAlpha READ decorationHasAlpha)
+    /**
+     * Whether the window has a decoration or not.
+     * This property is not allowed to be set by applications themselves.
+     * The decision whether a window has a border or not belongs to the window manager.
+     * If this property gets abused by application developers, it will be removed again.
+     **/
+    Q_PROPERTY(bool noBorder READ noBorder WRITE setNoBorder)
 public:
     virtual ~AbstractClient();
 
diff --git a/client.h b/client.h
index 9912de47a1..b9868ccf67 100644
--- a/client.h
+++ b/client.h
@@ -110,13 +110,6 @@ class Client
      * The "Window Tabs" Group this Client belongs to.
      **/
     Q_PROPERTY(KWin::TabGroup* tabGroup READ tabGroup NOTIFY tabGroupChanged SCRIPTABLE false)
-    /**
-     * Whether the window has a decoration or not.
-     * This property is not allowed to be set by applications themselves.
-     * The decision whether a window has a border or not belongs to the window manager.
-     * If this property gets abused by application developers, it will be removed again.
-     **/
-    Q_PROPERTY(bool noBorder READ noBorder WRITE setNoBorder)
     /**
      * A client can block compositing. That is while the Client is alive and the state is set,
      * Compositing is suspended and is resumed when there are no Clients blocking compositing any