diff --git a/fb/fboverlay.c b/fb/fboverlay.c
index 9ecff5ae5..40ebd3af7 100644
--- a/fb/fboverlay.c
+++ b/fb/fboverlay.c
@@ -92,7 +92,7 @@ fbOverlayCloseScreen(ScreenPtr pScreen)
 /*
  * Return layer containing this window
  */
-int
+static int
 fbOverlayWindowLayer(WindowPtr pWin)
 {
     FbOverlayScrPrivPtr pScrPriv = fbOverlayGetScrPriv(pWin->drawable.pScreen);
diff --git a/fb/fboverlay.h b/fb/fboverlay.h
index 6a3839c2b..a9e64d4a7 100644
--- a/fb/fboverlay.h
+++ b/fb/fboverlay.h
@@ -60,9 +60,6 @@ typedef struct _fbOverlayScrPriv {
 #define fbOverlayGetScrPriv(s) \
     dixLookupPrivate(&(s)->devPrivates, fbOverlayGetScreenPrivateKey())
 
-extern _X_EXPORT int
- fbOverlayWindowLayer(WindowPtr pWin);
-
 extern _X_EXPORT Bool
  fbOverlayCreateScreenResources(ScreenPtr pScreen);
 
diff --git a/fb/wfbrename.h b/fb/wfbrename.h
index 10f4d92d8..01c497b62 100644
--- a/fb/wfbrename.h
+++ b/fb/wfbrename.h
@@ -76,7 +76,6 @@
 #define fbOverlaySetupScreen wfbOverlaySetupScreen
 #define fbOverlayUpdateLayerRegion wfbOverlayUpdateLayerRegion
 #define fbOverlayWindowExposures wfbOverlayWindowExposures
-#define fbOverlayWindowLayer wfbOverlayWindowLayer
 #define fbPadPixmap wfbPadPixmap
 #define fbPictureInit wfbPictureInit
 #define fbPixmapToRegion wfbPixmapToRegion