diff --git a/dist/fix/fix.compact.ie.js b/dist/fix/fix.compact.ie.js
index fed11fa513..5891bfdd6e 100644
--- a/dist/fix/fix.compact.ie.js
+++ b/dist/fix/fix.compact.ie.js
@@ -13,10 +13,15 @@
         }
     }
 
-    function createWatcher(vm, keyOrFn, handler) {
-        return Fix.watch(vm.store, keyOrFn, _.bind(handler, vm), {
+    function createWatcher(vm, keyOrFn, cb, options) {
+        if (BI.isPlainObject(cb)) {
+            options = cb;
+            cb = cb.handler;
+        }
+        options = options || {};
+        return Fix.watch(vm.model, keyOrFn, _.bind(cb, vm), BI.extend(options, {
             store: vm.store
-        });
+        }));
     }
 
     var target = null;
diff --git a/webpack/webpack.common.js b/webpack/webpack.common.js
index 525f8d7a42..7107c0423c 100644
--- a/webpack/webpack.common.js
+++ b/webpack/webpack.common.js
@@ -19,6 +19,7 @@ module.exports = {
                 "core-js/features/function/bind",
                 "core-js/features/promise",
                 "core-js/features/string/replace",
+                "core-js/es/map",
                 // "core-js",
             ]
             : [