diff --git a/phpBB/phpbb/db/driver/driver.php b/phpBB/phpbb/db/driver/driver.php
index f64847db83..533a1dcf84 100644
--- a/phpBB/phpbb/db/driver/driver.php
+++ b/phpBB/phpbb/db/driver/driver.php
@@ -1247,11 +1247,7 @@ abstract class driver implements driver_interface
 	}
 
 	/**
-	 * Ensure query ID can be used by cache
-	 *
-	 * @param resource|int|string $query_id Mixed type query id
-	 *
-	 * @return int|string Query id in string or integer format
+	 * {@inheritDoc}
 	 */
 	public function clean_query_id($query_id)
 	{
diff --git a/phpBB/phpbb/db/driver/factory.php b/phpBB/phpbb/db/driver/factory.php
index 2541c28481..4f2efcf57d 100644
--- a/phpBB/phpbb/db/driver/factory.php
+++ b/phpBB/phpbb/db/driver/factory.php
@@ -472,4 +472,12 @@ class factory implements driver_interface
 	{
 		return $this->get_driver()->sql_quote($msg);
 	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	public function clean_query_id($query_id)
+	{
+		return $this->get_driver()->clean_query_id($query_id);
+	}
 }