diff --git a/wp-includes/post.php b/wp-includes/post.php
index 81cd12a12e..39eb6a35e9 100644
--- a/wp-includes/post.php
+++ b/wp-includes/post.php
@@ -3720,7 +3720,7 @@ function wp_unique_post_slug( $slug, $post_ID, $post_status, $post_type, $post_p
 			$suffix = 2;
 			do {
 				$alt_post_name = _truncate_post_slug( $slug, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix";
-				$post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $alt_post_name, $post_ID, $post_parent ) );
+				$post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $alt_post_name, $post_type, $post_ID, $post_parent ) );	
 				$suffix++;
 			} while ( $post_name_check );
 			$slug = $alt_post_name;
diff --git a/wp-includes/version.php b/wp-includes/version.php
index a559a77cae..f3ea35b95e 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.1-beta1-30479';
+$wp_version = '4.1-beta1-30480';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.