diff --git a/fb/fboverlay.c b/fb/fboverlay.c
index fc027f10f..1e4331bdb 100644
--- a/fb/fboverlay.c
+++ b/fb/fboverlay.c
@@ -235,7 +235,7 @@ fbOverlayCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
     RegionUninit(&rgnDst);
 }
 
-void
+static void
 fbOverlayWindowExposures(WindowPtr pWin, RegionPtr prgn)
 {
     fbOverlayUpdateLayerRegion(pWin->drawable.pScreen,
diff --git a/fb/fboverlay.h b/fb/fboverlay.h
index bf8792137..344d9029d 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
-fbOverlayWindowExposures(WindowPtr pWin, RegionPtr prgn);
-
 extern _X_EXPORT Bool
 
 fbOverlaySetupScreen(ScreenPtr pScreen,
diff --git a/fb/wfbrename.h b/fb/wfbrename.h
index 4808e1819..a835ba061 100644
--- a/fb/wfbrename.h
+++ b/fb/wfbrename.h
@@ -71,7 +71,6 @@
 #define fbOverlayGeneration wfbOverlayGeneration
 #define fbOverlayGetScreenPrivateKey wfbOverlayGetScreenPrivateKey
 #define fbOverlaySetupScreen wfbOverlaySetupScreen
-#define fbOverlayWindowExposures wfbOverlayWindowExposures
 #define fbPadPixmap wfbPadPixmap
 #define fbPictureInit wfbPictureInit
 #define fbPixmapToRegion wfbPixmapToRegion