diff --git a/lodash.src.js b/lodash.src.js
index 2cb0f51bf..386dba914 100644
--- a/lodash.src.js
+++ b/lodash.src.js
@@ -97,7 +97,7 @@
    * Used to match `RegExp` [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns)
    * and those outlined by [`EscapeRegExpPattern`](http://ecma-international.org/ecma-262/6.0/#sec-escaperegexppattern).
    */
-  var reRegExpChars = /^[:!,]|[\/^$\\.*+?()[\]{}|]|(^[0-9a-fA-Fnrtuvx])|([\n\r\u2028\u2029])/g,
+  var reRegExpChars = /^[:!,]|[\\^$.*+?()[\]{}|\/]|(^[0-9a-fA-Fnrtuvx])|([\n\r\u2028\u2029])/g,
       reHasRegExpChars = RegExp(reRegExpChars.source);
 
   /** Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). */
@@ -768,7 +768,7 @@
 
     /** Used to detect if a method is native. */
     var reIsNative = RegExp('^' +
-      escapeRegExp(fnToString.call(hasOwnProperty))
+      fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
       .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
     );