diff --git a/lodash/lodash-tests.ts b/lodash/lodash-tests.ts
index f12ca23c4..d66b2be81 100644
--- a/lodash/lodash-tests.ts
+++ b/lodash/lodash-tests.ts
@@ -462,36 +462,58 @@ module TestFindIndex {
 module TestFindLastIndex {
     let array: TResult[];
     let list: _.List<TResult>;
+
     let predicateFn: (value: TResult, index?: number, collection?: _.List<TResult>) => boolean;
-    let result: number;
 
-    result = _.findLastIndex<TResult>(array);
-    result = _.findLastIndex<TResult>(array, predicateFn);
-    result = _.findLastIndex<TResult>(array, predicateFn, any);
-    result = _.findLastIndex<TResult>(array, '');
-    result = _.findLastIndex<TResult>(array, '', any);
-    result = _.findLastIndex<{a: number}, TResult>(array, {a: 42});
+    {
+        let result: number;
 
-    result = _.findLastIndex<TResult>(list);
-    result = _.findLastIndex<TResult>(list, predicateFn);
-    result = _.findLastIndex<TResult>(list, predicateFn, any);
-    result = _.findLastIndex<TResult>(list, '');
-    result = _.findLastIndex<TResult>(list, '', any);
-    result = _.findLastIndex<{a: number}, TResult>(list, {a: 42});
+        result = _.findLastIndex<TResult>(array);
+        result = _.findLastIndex<TResult>(array, predicateFn);
+        result = _.findLastIndex<TResult>(array, predicateFn, any);
+        result = _.findLastIndex<TResult>(array, '');
+        result = _.findLastIndex<TResult>(array, '', any);
+        result = _.findLastIndex<{a: number}, TResult>(array, {a: 42});
 
-    result = _<TResult>(array).findLastIndex();
-    result = _<TResult>(array).findLastIndex(predicateFn);
-    result = _<TResult>(array).findLastIndex(predicateFn, any);
-    result = _<TResult>(array).findLastIndex('');
-    result = _<TResult>(array).findLastIndex('', any);
-    result = _<TResult>(array).findLastIndex<{a: number}>({a: 42});
+        result = _.findLastIndex<TResult>(list);
+        result = _.findLastIndex<TResult>(list, predicateFn);
+        result = _.findLastIndex<TResult>(list, predicateFn, any);
+        result = _.findLastIndex<TResult>(list, '');
+        result = _.findLastIndex<TResult>(list, '', any);
+        result = _.findLastIndex<{a: number}, TResult>(list, {a: 42});
 
-    result = _(list).findLastIndex();
-    result = _(list).findLastIndex<TResult>(predicateFn);
-    result = _(list).findLastIndex<TResult>(predicateFn, any);
-    result = _(list).findLastIndex('');
-    result = _(list).findLastIndex('', any);
-    result = _(list).findLastIndex<{a: number}>({a: 42});
+        result = _<TResult>(array).findLastIndex();
+        result = _<TResult>(array).findLastIndex(predicateFn);
+        result = _<TResult>(array).findLastIndex(predicateFn, any);
+        result = _<TResult>(array).findLastIndex('');
+        result = _<TResult>(array).findLastIndex('', any);
+        result = _<TResult>(array).findLastIndex<{a: number}>({a: 42});
+
+        result = _(list).findLastIndex();
+        result = _(list).findLastIndex<TResult>(predicateFn);
+        result = _(list).findLastIndex<TResult>(predicateFn, any);
+        result = _(list).findLastIndex('');
+        result = _(list).findLastIndex('', any);
+        result = _(list).findLastIndex<{a: number}>({a: 42});
+    }
+
+    {
+        let result: _.LoDashExplicitWrapper<number>;
+
+        result = _<TResult>(array).chain().findLastIndex();
+        result = _<TResult>(array).chain().findLastIndex(predicateFn);
+        result = _<TResult>(array).chain().findLastIndex(predicateFn, any);
+        result = _<TResult>(array).chain().findLastIndex('');
+        result = _<TResult>(array).chain().findLastIndex('', any);
+        result = _<TResult>(array).chain().findLastIndex<{a: number}>({a: 42});
+
+        result = _(list).chain().findLastIndex();
+        result = _(list).chain().findLastIndex<TResult>(predicateFn);
+        result = _(list).chain().findLastIndex<TResult>(predicateFn, any);
+        result = _(list).chain().findLastIndex('');
+        result = _(list).chain().findLastIndex('', any);
+        result = _(list).chain().findLastIndex<{a: number}>({a: 42});
+    }
 }
 
 // _.first
diff --git a/lodash/lodash.d.ts b/lodash/lodash.d.ts
index 141ad993c..1356e1c87 100644
--- a/lodash/lodash.d.ts
+++ b/lodash/lodash.d.ts
@@ -908,6 +908,56 @@ declare module _ {
         ): number;
     }
 
+    interface LoDashExplicitArrayWrapper<T> {
+        /**
+         * @see _.findLastIndex
+         */
+        findLastIndex(
+            predicate?: ListIterator<T, boolean>,
+            thisArg?: any
+        ): LoDashExplicitWrapper<number>;
+
+        /**
+         * @see _.findLastIndex
+         */
+        findLastIndex(
+            predicate?: string,
+            thisArg?: any
+        ): LoDashExplicitWrapper<number>;
+
+        /**
+         * @see _.findLastIndex
+         */
+        findLastIndex<W>(
+            predicate?: W
+        ): LoDashExplicitWrapper<number>;
+    }
+
+    interface LoDashExplicitObjectWrapper<T> {
+        /**
+         * @see _.findLastIndex
+         */
+        findLastIndex<TResult>(
+            predicate?: ListIterator<TResult, boolean>,
+            thisArg?: any
+        ): LoDashExplicitWrapper<number>;
+
+        /**
+         * @see _.findLastIndex
+         */
+        findLastIndex(
+            predicate?: string,
+            thisArg?: any
+        ): LoDashExplicitWrapper<number>;
+
+        /**
+         * @see _.findLastIndex
+         */
+        findLastIndex<W>(
+            predicate?: W
+        ): LoDashExplicitWrapper<number>;
+    }
+
     //_.first
     interface LoDashStatic {
         /**