diff --git a/lodash.js b/lodash.js
index 99fafde74..a177b548f 100644
--- a/lodash.js
+++ b/lodash.js
@@ -8164,7 +8164,7 @@
       }
       if (floating || min % 1 || max % 1) {
         var rand = nativeRandom();
-        return nativeMin(min + (rand * (max - min + parseFloat('1e-' + ((rand +'').length - 1)))), max);
+        return nativeMin(min + (rand * (max - min + parseFloat('1e-' + (String(rand).length - 1)))), max);
       }
       return baseRandom(min, max);
     }