diff --git a/clients/nitrogen/nitrogensizegrip.h b/clients/nitrogen/nitrogensizegrip.h
index 390e75f2d8..4aa7464c3d 100644
--- a/clients/nitrogen/nitrogensizegrip.h
+++ b/clients/nitrogen/nitrogensizegrip.h
@@ -54,7 +54,7 @@ namespace Nitrogen
     public slots:
     
     //! update background color
-    void updateBackgroundColor( void );
+    void activeChange( void );
 
     protected slots: