diff --git a/lodash/lodash-tests.ts b/lodash/lodash-tests.ts
index 3f7a26556d..eae6e8fa38 100644
--- a/lodash/lodash-tests.ts
+++ b/lodash/lodash-tests.ts
@@ -5920,10 +5920,24 @@ result = <boolean>_({}).isError();
 }
 
 // _.isFinite
-result = <boolean>_.isFinite(any);
-result = <boolean>_(1).isFinite();
-result = <boolean>_<any>([]).isFinite();
-result = <boolean>_({}).isFinite();
+module TestIsFinite {
+    {
+        let result: boolean;
+
+        result = _.isFinite(any);
+        result = _(1).isFinite();
+        result = _<any>([]).isFinite();
+        result = _({}).isFinite();
+    }
+
+    {
+        let result: _.LoDashExplicitWrapper<boolean>;
+
+        result = _(1).chain().isFinite();
+        result = _<any>([]).chain().isFinite();
+        result = _({}).chain().isFinite();
+    }
+}
 
 // _.isFunction
 module TestIsFunction {
diff --git a/lodash/lodash.d.ts b/lodash/lodash.d.ts
index 584500c101..2a93f0ad9b 100644
--- a/lodash/lodash.d.ts
+++ b/lodash/lodash.d.ts
@@ -9928,11 +9928,13 @@ declare module _ {
     interface LoDashStatic {
         /**
          * Checks if value is a finite primitive number.
+         *
          * Note: This method is based on Number.isFinite.
+         *
          * @param value The value to check.
          * @return Returns true if value is a finite number, else false.
-         **/
-        isFinite(value?: any): value is number;
+         */
+        isFinite(value?: any): boolean;
     }
 
     interface LoDashImplicitWrapperBase<T, TWrapper> {
@@ -9942,6 +9944,13 @@ declare module _ {
         isFinite(): boolean;
     }
 
+    interface LoDashExplicitWrapperBase<T, TWrapper> {
+        /**
+         * @see _.isFinite
+         */
+        isFinite(): LoDashExplicitWrapper<boolean>;
+    }
+
     //_.isFunction
     interface LoDashStatic {
         /**