diff --git a/lodash/lodash-tests.ts b/lodash/lodash-tests.ts
index 8d4b23169..13ac22469 100644
--- a/lodash/lodash-tests.ts
+++ b/lodash/lodash-tests.ts
@@ -1186,6 +1186,12 @@ result = <boolean>_(undefined).isNaN();
 result = <boolean>_.isNative(Array.prototype.push);
 result = <boolean>_(Array.prototype.push).isNative();
 
+// _.isRegExp
+result = <boolean>_.isRegExp(any);
+result = <boolean>_(1).isRegExp();
+result = <boolean>_<any>([]).isRegExp();
+result = <boolean>_({}).isRegExp();
+
 // _.isTypedArray
 result = <boolean>_.isTypedArray([]);
 result = <boolean>_([]).isTypedArray();
@@ -1436,8 +1442,6 @@ result = <boolean>_.isPlainObject(new Stooge('moe', 40));
 result = <boolean>_.isPlainObject([1, 2, 3]);
 result = <boolean>_.isPlainObject({ 'name': 'moe', 'age': 40 });
 
-result = <boolean>_.isRegExp(/moe/);
-
 result = <boolean>_.isString('moe');
 
 result = <boolean>_.isUndefined(void 0);
diff --git a/lodash/lodash.d.ts b/lodash/lodash.d.ts
index 2bdf00691..ab1ef2a3e 100644
--- a/lodash/lodash.d.ts
+++ b/lodash/lodash.d.ts
@@ -6195,6 +6195,23 @@ declare module _ {
         isNative(): boolean;
     }
 
+    //_.isRegExp
+    interface LoDashStatic {
+        /**
+         * Checks if value is classified as a RegExp object.
+         * @param value The value to check.
+         * @return Returns true if value is correctly classified, else false.
+         */
+        isRegExp(value?: any): boolean;
+    }
+
+    interface LoDashWrapperBase<T, TWrapper> {
+        /**
+         * see _.isRegExp
+         */
+        isRegExp(): boolean;
+    }
+
     //_.isTypedArray
     interface LoDashStatic {
         /**
@@ -7048,16 +7065,6 @@ declare module _ {
         isPlainObject(value?: any): boolean;
     }
 
-    //_.isRegExp
-    interface LoDashStatic {
-        /**
-        * Checks if value is a regular expression.
-        * @param value The value to check.
-        * @return True if the value is a regular expression, else false.
-        **/
-        isRegExp(value?: any): boolean;
-    }
-
     //_.isString
     interface LoDashStatic {
         /**