diff --git a/src/stacking.h b/src/stacking.h
index 2d0b36db..4b65c13e 100644
--- a/src/stacking.h
+++ b/src/stacking.h
@@ -44,4 +44,6 @@ void CommitStacking(WScreen *scr);
 
 void CommitStackingForFrame(WCoreWindow *frame);
 
+void CommitStackingForWindow(WCoreWindow * frame);
+
 #endif
diff --git a/src/superfluous.c b/src/superfluous.c
index b2415024..18fe27ee 100644
--- a/src/superfluous.c
+++ b/src/superfluous.c
@@ -40,6 +40,7 @@
 #include "window.h"
 #include "actions.h"
 #include "xinerama.h"
+#include "stacking.h"
 
 extern WPreferences wPreferences;