diff --git a/mi/mi.h b/mi/mi.h
index e38bf383e..444d3adb0 100644
--- a/mi/mi.h
+++ b/mi/mi.h
@@ -419,10 +419,6 @@ extern DevPrivateKey miAllocateGCPrivateIndex(
     void
 );
 
-extern void miSetScreenPixmap(
-    PixmapPtr pPix
-);
-
 /* mivaltree.c */
 
 extern int miShapedWindowIn(