diff --git a/dix/window.c b/dix/window.c
index 1a28d27c6..0f182be1d 100644
--- a/dix/window.c
+++ b/dix/window.c
@@ -2640,7 +2640,7 @@ EnableMapUnmapEvents(WindowPtr pWin)
     windowDisableMapUnmapEvents = NULL;
 }
 
-static Bool
+Bool
 MapUnmapEventsEnabled(WindowPtr pWin)
 {
     return pWin != windowDisableMapUnmapEvents;
diff --git a/include/window.h b/include/window.h
index 04cbe2627..0b0854817 100644
--- a/include/window.h
+++ b/include/window.h
@@ -268,5 +268,7 @@ extern void DisableMapUnmapEvents(
     WindowPtr /* pWin */ );
 extern void EnableMapUnmapEvents(
     WindowPtr /* pWin */ );
+extern Bool MapUnmapEventsEnabled(
+    WindowPtr /* pWin */ );
 
 #endif /* WINDOW_H */