diff --git a/wp-includes/comment-functions.php b/wp-includes/comment-functions.php
index 6b055d1d22..e1975f62e6 100644
--- a/wp-includes/comment-functions.php
+++ b/wp-includes/comment-functions.php
@@ -2742,6 +2742,7 @@ function wp_handle_comment_submission( $comment_data ) {
 		$comment_author       = $user->display_name;
 		$comment_author_email = $user->user_email;
 		$comment_author_url   = $user->user_url;
+		$user_id              = $user->ID;
 		if ( current_user_can( 'unfiltered_html' ) ) {
 			if ( ! isset( $comment_data['_wp_unfiltered_html_comment'] )
 				|| ! wp_verify_nonce( $comment_data['_wp_unfiltered_html_comment'], 'unfiltered-html-comment_' . $comment_post_ID )
@@ -2778,7 +2779,7 @@ function wp_handle_comment_submission( $comment_data ) {
 		'comment_content',
 		'comment_type',
 		'comment_parent',
-		'user_ID'
+		'user_id'
 	);
 
 	$comment_id = wp_new_comment( wp_slash( $commentdata ) );
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 5497a7668e..d6390e45b2 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.4-beta2-35434';
+$wp_version = '4.4-beta2-35435';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.