diff --git a/fb/fbpict.c b/fb/fbpict.c
index c5199afb2..dd9cefe15 100644
--- a/fb/fbpict.c
+++ b/fb/fbpict.c
@@ -275,7 +275,7 @@ copy_drawable (DrawablePtr pDraw)
     PixmapPtr pPixmap;
     GCPtr pGC;
     int width, height;
-    ChangeGCVal gcv[1];
+    ChangeGCVal gcv[2];
     
     width = pDraw->width;
     height = pDraw->height;