diff --git a/source/Ox/js/Array.js b/source/Ox/js/Array.js
index fbd9bef8..8e845c40 100644
--- a/source/Ox/js/Array.js
+++ b/source/Ox/js/Array.js
@@ -433,7 +433,9 @@ Ox.range = function() {
             var match;
             if (Ox.isString(val)) {
                 match = arr_[i].match(/\d+/g);
-                match && matches.concat(match);
+                if (match) {
+                    matches = matches.concat(match);
+                }
             }
         });
         // get length of longest number