diff --git a/src/powder.c b/src/powder.c
index 9c684e91d..354c788e0 100644
--- a/src/powder.c
+++ b/src/powder.c
@@ -2808,7 +2808,7 @@ void create_box(int x1, int y1, int x2, int y2, int c, int flags)
 {
 	int i, j;
 	if (c==SPC_PROP)
-		return 0;
+		return;
 	if (x1>x2)
 	{
 		i = x2;