diff --git a/lodash/lodash-tests.ts b/lodash/lodash-tests.ts
index 85020b5df..b2edfe950 100644
--- a/lodash/lodash-tests.ts
+++ b/lodash/lodash-tests.ts
@@ -6116,15 +6116,28 @@ module TestHas {
     result = _({}).invert<TResult>(true).value();
 }
 
-class Stooge {
-    constructor(
-        public name: string,
-        public age: number
-        ) { }
-}
+// _.keys
+module TestKeys {
+    let object: _.Dictionary<any>;
 
-result = <string[]>_.keys({ 'one': 1, 'two': 2, 'three': 3 });
-result = <string[]>_({ 'one': 1, 'two': 2, 'three': 3 }).keys().value();
+    {
+        let result: string[];
+
+        result = _.keys(object);
+    }
+
+    {
+        let result: _.LoDashImplicitArrayWrapper<string>;
+
+        result = _(object).keys();
+    }
+
+    {
+        let result: _.LoDashExplicitArrayWrapper<string>;
+
+        result = _(object).chain().keys();
+    }
+}
 
 result = <string[]>_.keysIn({ 'one': 1, 'two': 2, 'three': 3 });
 result = <string[]>_({ 'one': 1, 'two': 2, 'three': 3 }).keysIn().value();
diff --git a/lodash/lodash.d.ts b/lodash/lodash.d.ts
index e1216dd47..317437062 100644
--- a/lodash/lodash.d.ts
+++ b/lodash/lodash.d.ts
@@ -10653,18 +10653,26 @@ declare module _ {
     //_.keys
     interface LoDashStatic {
         /**
-        * Creates an array composed of the own enumerable property names of an object.
-        * @param object The object to inspect.
-        * @return An array of property names.
-        **/
+         * Creates an array of the own enumerable property names of object.
+         *
+         * @param object The object to query.
+         * @return Returns the array of property names.
+         */
         keys(object?: any): string[];
     }
 
     interface LoDashImplicitObjectWrapper<T> {
         /**
-        * @see _.keys
-        **/
-        keys(): LoDashImplicitArrayWrapper<string>
+         * @see _.keys
+         */
+        keys(): LoDashImplicitArrayWrapper<string>;
+    }
+
+    interface LoDashExplicitObjectWrapper<T> {
+        /**
+         * @see _.keys
+         */
+        keys(): LoDashExplicitArrayWrapper<string>;
     }
 
     //_.keysIn