diff --git a/lodash.src.js b/lodash.src.js
index b11162c84..5c30c178f 100644
--- a/lodash.src.js
+++ b/lodash.src.js
@@ -776,7 +776,7 @@
         getOwnPropertySymbols = isNative(getOwnPropertySymbols = Object.getOwnPropertySymbols) && getOwnPropertySymbols,
         getPrototypeOf = isNative(getPrototypeOf = Object.getPrototypeOf) && getPrototypeOf,
         push = arrayProto.push,
-        preventExtensions = isNative(Object.preventExtensions = Object.preventExtensions) && preventExtensions,
+        preventExtensions = isNative(preventExtensions = Object.preventExtensions) && preventExtensions,
         propertyIsEnumerable = objectProto.propertyIsEnumerable,
         Set = isNative(Set = context.Set) && Set,
         setTimeout = context.setTimeout,