Minor tweak

diff --git a/examples/mandel.factor b/examples/mandel.factor
index c738ec0f506c7f0fc6854d6e0999980fc0937196..ae74192ba52c4da3188e8a19b1b51791bc84c7c7 100644 (file)
--- a/examples/mandel.factor
+++ b/examples/mandel.factor
@@ -88,7 +88,7 @@ SYMBOL: cols
 : render ( -- )
     height [
         width [
-            2dup swap c 0 nb-iter iter dup 0 = [
+            2dup swap c 0 nb-iter iter dup zero? [
                 drop "\0\0\0"
             ] [
                 cols get [ length mod ] keep nth