diff --git a/lodash.src.js b/lodash.src.js
index 53ce7c3ec..d0474f654 100644
--- a/lodash.src.js
+++ b/lodash.src.js
@@ -2191,7 +2191,6 @@
           var valIndex = -1,
               valLength = value.length;
 
-          result.length += valLength;
           while (++valIndex < valLength) {
             result[++resIndex] = value[valIndex];
           }