diff --git a/adminer/drivers/mysql.inc.php b/adminer/drivers/mysql.inc.php
index f6dde517..50834e76 100644
--- a/adminer/drivers/mysql.inc.php
+++ b/adminer/drivers/mysql.inc.php
@@ -585,7 +585,7 @@ if (!defined("DRIVER")) {
 	*/
 	function foreign_keys($table) {
 		global $connection, $on_actions;
-		static $pattern = '(?:`(?:[^`]|``)+`|(?:"(?:[^"]|"")+"))';
+		static $pattern = '(?:`(?:[^`]|``)+`|"(?:[^"]|"")+")';
 		$return = array();
 		$create_table = $connection->result("SHOW CREATE TABLE " . table($table), 1);
 		if ($create_table) {
diff --git a/changes.txt b/changes.txt
index 2a1e438a..4d0d1729 100644
--- a/changes.txt
+++ b/changes.txt
@@ -1,5 +1,5 @@
 Adminer 4.7.3-dev:
-MySQL: Speed up displaying tables in large databases (bug #700)
+MySQL: Speed up displaying tables in large databases (bug #700, regression from 4.7.2)
 MySQL: Allow editing rows identified by negative floats (bug #695)
 MySQL: Skip editing generated columns
 SQLite: Quote strings stored in integer columns in export (bug #696)