diff --git a/cif/CIFgen.c b/cif/CIFgen.c
index e6cd47ef..7a6ebe56 100644
--- a/cif/CIFgen.c
+++ b/cif/CIFgen.c
@@ -305,7 +305,6 @@ cifGrowMinFunc(tile, table)
     TileType type, tptype;
     Tile *tp, *tp2;
     bool changed;
-    void SetMinBoxGrid(Rect *area, int width);		/* Forward reference */
 
     TiToRect(tile, &area);