diff --git a/build.js b/build.js
index 772cd3f72..964225622 100755
--- a/build.js
+++ b/build.js
@@ -2567,7 +2567,7 @@
         source = replaceVar(source, 'htmlUnescapes', "{'&amp;':'&','&lt;':'<','&gt;':'>','&quot;':'\"','&#x27;':\"'\"}");
       }
       if (isRemoved(source, 'isArguments')) {
-        source = replaceVar(source, 'noArgsClass', 'false');
+        source = replaceSupportProp(source, 'argsClass', 'true');
       }
       if (isRemoved(source, 'isFunction')) {
         source = removeIsFunctionFallback(source);
@@ -2639,6 +2639,7 @@
       }
       if (isRemoved(source, 'parseInt')) {
         source = removeVar(source, 'nativeParseInt');
+        source = removeVar(source, 'reLeadingZeros');
       }
       if (isRemoved(source, 'template')) {
         // remove `templateSettings` assignment
diff --git a/dist/lodash.underscore.js b/dist/lodash.underscore.js
index 8c1a61d29..29330653b 100644
--- a/dist/lodash.underscore.js
+++ b/dist/lodash.underscore.js
@@ -50,9 +50,6 @@
   /** Used to match "interpolate" template delimiters */
   var reInterpolate = /<%=([\s\S]+?)%>/g;
 
-  /** Used to match leading zeros to be removed */
-  var reLeadingZeros = /^0+(?=.$)/;
-
   /** Used to ensure capturing order of template delimiters */
   var reNoMatch = /($^)/;