1 files changed, 2 insertions, 1 deletions
diff --git a/src/Window.hh b/src/Window.hh
index 02c15bcb..74a562a0 100644
--- a/src/Window.hh
+++ b/src/Window.hh
@@ -255,7 +255,8 @@ private:
 
   bool getState(void);
   Window createToplevelWindow();
-  Window createChildWindow(Window parent, Cursor = None);
+  Window createChildWindow(Window parent, unsigned long event_mask,
+                           Cursor = None);
 
   bool getWindowType(void);
   void updateStrut(void);