--- a/newgrf.c	Wed Mar 30 12:27:50 2005 +0000
+++ b/newgrf.c	Wed Mar 30 12:30:24 2005 +0000
@@ -1691,7 +1691,7 @@
 			return;
 	}
 
-	if (result == 0) {
+	if (!result) {
 		grfmsg(GMS_NOTICE, "Not skipping sprites, test was false.");
 		return;
 	}