diff --git a/appframework/appframework-tests.ts b/appframework/appframework-tests.ts
index d86c73266..16cfe9802 100644
--- a/appframework/appframework-tests.ts
+++ b/appframework/appframework-tests.ts
@@ -1,6 +1,6 @@
 /// <reference path="appframework.d.ts" />
 
-af(function ($: appFrameworkCollection) {});
+af(($: appFrameworkStatic) => {});
 
 ((): appFrameworkCollection => {
   return $('div'); //=> all DIV elements on the page
@@ -192,7 +192,7 @@ $.feat.cssTransformEnd;
 
 
 ((): appFrameworkCollection => {
-  return $('').reduce(() => {});
+  return $('').reduce((hoge) => { return hoge; });
 })();
 
 ((): number => {
diff --git a/appframework/appframework.d.ts b/appframework/appframework.d.ts
index c7cd4b207..66cc32e1b 100644
--- a/appframework/appframework.d.ts
+++ b/appframework/appframework.d.ts
@@ -53,8 +53,8 @@ interface appFrameworkStatic {
      * @return {Array} elements
      * @title $.each(elements,callback)
      */
-    each(collection: any[], fn: (index: number, item: any) => boolean): void;
-    each(collection: any, fn: (key: string, value: any) => boolean): void;
+    each(collection: any[], fn: (index: number, item: any) => any): void;
+    each(collection: any, fn: (key: string, value: any) => any): void;
 
     /**
      * Extends an object with additional arguments