diff --git a/README.md b/README.md
index 71e6efee7..578db672a 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# lodash-amd v4.17.3
+# lodash-amd v4.17.4
 
 The [Lodash](https://lodash.com/) library exported as [AMD](https://github.com/amdjs/amdjs-api/wiki/AMD) modules.
 
@@ -27,4 +27,4 @@ require({
 });
 ```
 
-See the [package source](https://github.com/lodash/lodash/tree/4.17.3-amd) for more details.
+See the [package source](https://github.com/lodash/lodash/tree/4.17.4-amd) for more details.
diff --git a/_customOmitClone.js b/_customOmitClone.js
index aaddde388..2b896084e 100644
--- a/_customOmitClone.js
+++ b/_customOmitClone.js
@@ -12,8 +12,8 @@ define(['./isPlainObject'], function(isPlainObject) {
    * @param {string} key The key of the property to inspect.
    * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.
    */
-  function customOmitClone(value, key) {
-    return (key !== undefined && isPlainObject(value)) ? undefined : value;
+  function customOmitClone(value) {
+    return isPlainObject(value) ? undefined : value;
   }
 
   return customOmitClone;
diff --git a/main.js b/main.js
index 65e543c34..09fd7b3a9 100644
--- a/main.js
+++ b/main.js
@@ -13,7 +13,7 @@
   var undefined;
 
   /** Used as the semantic version number. */
-  var VERSION = '4.17.3';
+  var VERSION = '4.17.4';
 
   /** Used as the size to enable large array optimizations. */
   var LARGE_ARRAY_SIZE = 200;
@@ -5633,8 +5633,8 @@
      * @param {string} key The key of the property to inspect.
      * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.
      */
-    function customOmitClone(value, key) {
-      return (key !== undefined && isPlainObject(value)) ? undefined : value;
+    function customOmitClone(value) {
+      return isPlainObject(value) ? undefined : value;
     }
 
     /**
diff --git a/package.json b/package.json
index 501d7dde5..61837db6e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lodash-amd",
-  "version": "4.17.3",
+  "version": "4.17.4",
   "description": "Lodash exported as AMD modules.",
   "keywords": "amd, modules, stdlib, util",
   "homepage": "https://lodash.com/custom-builds",