diff --git a/src/wp-includes/class-wp-dependency.php b/src/wp-includes/class-wp-dependency.php
new file mode 100644
index 0000000000..92c5456172
--- /dev/null
+++ b/src/wp-includes/class-wp-dependency.php
@@ -0,0 +1,104 @@
+<?php
+/**
+ * Dependencies API: _WP_Dependency class
+ *
+ * @since 4.7.0
+ *
+ * @package WordPress
+ * @subpackage Dependencies
+ */
+
+/**
+ * Class _WP_Dependency
+ *
+ * Helper class to register a handle and associated data.
+ *
+ * @access private
+ * @since 2.6.0
+ */
+class _WP_Dependency {
+	/**
+	 * The handle name.
+	 *
+	 * @access public
+	 * @since 2.6.0
+	 * @var null
+	 */
+	public $handle;
+
+	/**
+	 * The handle source.
+	 *
+	 * @access public
+	 * @since 2.6.0
+	 * @var null
+	 */
+	public $src;
+
+	/**
+	 * An array of handle dependencies.
+	 *
+	 * @access public
+	 * @since 2.6.0
+	 * @var array
+	 */
+	public $deps = array();
+
+	/**
+	 * The handle version.
+	 *
+	 * Used for cache-busting.
+	 *
+	 * @access public
+	 * @since 2.6.0
+	 * @var bool|string
+	 */
+	public $ver = false;
+
+	/**
+	 * Additional arguments for the handle.
+	 *
+	 * @access public
+	 * @since 2.6.0
+	 * @var null
+	 */
+	public $args = null;  // Custom property, such as $in_footer or $media.
+
+	/**
+	 * Extra data to supply to the handle.
+	 *
+	 * @access public
+	 * @since 2.6.0
+	 * @var array
+	 */
+	public $extra = array();
+
+	/**
+	 * Setup dependencies.
+	 *
+	 * @since 2.6.0
+	 */
+	public function __construct() {
+		@list( $this->handle, $this->src, $this->deps, $this->ver, $this->args ) = func_get_args();
+		if ( ! is_array($this->deps) )
+			$this->deps = array();
+	}
+
+	/**
+	 * Add handle data.
+	 *
+	 * @access public
+	 * @since 2.6.0
+	 *
+	 * @param string $name The data key to add.
+	 * @param mixed  $data The data value to add.
+	 * @return bool False if not scalar, true otherwise.
+	 */
+	public function add_data( $name, $data ) {
+		if ( !is_scalar($name) )
+			return false;
+		$this->extra[$name] = $data;
+		return true;
+	}
+
+}
diff --git a/src/wp-includes/class.wp-dependencies.php b/src/wp-includes/class.wp-dependencies.php
index 03484181cf..13ff04fa5a 100644
--- a/src/wp-includes/class.wp-dependencies.php
+++ b/src/wp-includes/class.wp-dependencies.php
@@ -211,7 +211,7 @@ class WP_Dependencies {
 	 *                                 as a query string for cache busting purposes. If version is set to false, a version
 	 *                                 number is automatically added equal to current installed WordPress version.
 	 *                                 If set to null, no version is added.
-	 * @param mixed            $args   Optional. Custom property of the item. NOT the class property $args. Examples: $media, $in_footer. 
+	 * @param mixed            $args   Optional. Custom property of the item. NOT the class property $args. Examples: $media, $in_footer.
 	 * @return bool Whether the item has been registered. True on success, false on failure.
 	 */
 	public function add( $handle, $src, $deps = array(), $ver = false, $args = null ) {
@@ -411,99 +411,4 @@ class WP_Dependencies {
 		return true;
 	}
 
-} // WP_Dependencies
-
-/**
- * Class _WP_Dependency
- *
- * Helper class to register a handle and associated data.
- *
- * @access private
- * @since 2.6.0
- */
-class _WP_Dependency {
-	/**
-	 * The handle name.
-	 *
-	 * @access public
-	 * @since 2.6.0
-	 * @var null
-	 */
-	public $handle;
-
-	/**
-	 * The handle source.
-	 *
-	 * @access public
-	 * @since 2.6.0
-	 * @var null
-	 */
-	public $src;
-
-	/**
-	 * An array of handle dependencies.
-	 *
-	 * @access public
-	 * @since 2.6.0
-	 * @var array
-	 */
-	public $deps = array();
-
-	/**
-	 * The handle version.
-	 *
-	 * Used for cache-busting.
-	 *
-	 * @access public
-	 * @since 2.6.0
-	 * @var bool|string
-	 */
-	public $ver = false;
-
-	/**
-	 * Additional arguments for the handle.
-	 *
-	 * @access public
-	 * @since 2.6.0
-	 * @var null
-	 */
-	public $args = null;  // Custom property, such as $in_footer or $media.
-
-	/**
-	 * Extra data to supply to the handle.
-	 *
-	 * @access public
-	 * @since 2.6.0
-	 * @var array
-	 */
-	public $extra = array();
-
-	/**
-	 * Setup dependencies.
-	 *
-	 * @since 2.6.0
-	 */
-	public function __construct() {
-		@list( $this->handle, $this->src, $this->deps, $this->ver, $this->args ) = func_get_args();
-		if ( ! is_array($this->deps) )
-			$this->deps = array();
-	}
-
-	/**
-	 * Add handle data.
-	 *
-	 * @access public
-	 * @since 2.6.0
-	 *
-	 * @param string $name The data key to add.
-	 * @param mixed  $data The data value to add.
-	 * @return bool False if not scalar, true otherwise.
-	 */
-	public function add_data( $name, $data ) {
-		if ( !is_scalar($name) )
-			return false;
-		$this->extra[$name] = $data;
-		return true;
-	}
-
-} // _WP_Dependencies
+}
diff --git a/src/wp-includes/script-loader.php b/src/wp-includes/script-loader.php
index 22f8f2b8b2..c60cfa6cf7 100644
--- a/src/wp-includes/script-loader.php
+++ b/src/wp-includes/script-loader.php
@@ -16,6 +16,9 @@
  * @package WordPress
  */
 
+/** WordPress Dependency Class */
+require( ABSPATH . WPINC . '/class-wp-dependency.php' );
+
 /** WordPress Dependencies Class */
 require( ABSPATH . WPINC . '/class.wp-dependencies.php' );