diff --git a/tools/quake3/q3map2/surface.c b/tools/quake3/q3map2/surface.c
index ba400b08..b5dd724e 100644
--- a/tools/quake3/q3map2/surface.c
+++ b/tools/quake3/q3map2/surface.c
@@ -2147,7 +2147,7 @@ subdivides a patch into an approximate curve and filters it into the tree
 
 static int FilterPatchIntoTree( mapDrawSurface_t *ds, tree_t *tree )
 {
-	int					x, y, refs;
+	int					x, y, refs = 0;
 	
 	for(y = 0; y + 2 < ds->patchHeight; y += 2)
 		for(x = 0; x + 2 < ds->patchWidth; x += 2)