diff --git a/fb/fboverlay.c b/fb/fboverlay.c
index bd269c3b1..79e02bfe1 100644
--- a/fb/fboverlay.c
+++ b/fb/fboverlay.c
@@ -154,7 +154,7 @@ fbOverlayPaintKey(DrawablePtr pDrawable,
 /*
  * Track visible region for each layer
  */
-void
+static void
 fbOverlayUpdateLayerRegion(ScreenPtr pScreen, int layer, RegionPtr prgn)
 {
     FbOverlayScrPrivPtr pScrPriv = fbOverlayGetScrPriv(pScreen);
diff --git a/fb/fboverlay.h b/fb/fboverlay.h
index 6ba474ed4..9ab04d678 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 void
- fbOverlayUpdateLayerRegion(ScreenPtr pScreen, int layer, RegionPtr prgn);
-
 extern _X_EXPORT void
  fbOverlayCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc);
 
diff --git a/fb/wfbrename.h b/fb/wfbrename.h
index 5971cf917..fa04c071c 100644
--- a/fb/wfbrename.h
+++ b/fb/wfbrename.h
@@ -72,7 +72,6 @@
 #define fbOverlayGeneration wfbOverlayGeneration
 #define fbOverlayGetScreenPrivateKey wfbOverlayGetScreenPrivateKey
 #define fbOverlaySetupScreen wfbOverlaySetupScreen
-#define fbOverlayUpdateLayerRegion wfbOverlayUpdateLayerRegion
 #define fbOverlayWindowExposures wfbOverlayWindowExposures
 #define fbPadPixmap wfbPadPixmap
 #define fbPictureInit wfbPictureInit