diff --git a/typo3/sysext/core/ext_tables.sql b/typo3/sysext/core/ext_tables.sql
index 8b3e06402717c87fd29d4a2be82bb03e9a8fa996..98387701d7b8f2df8bd6d0b1d1c9769b9f4d1aaf 100644
--- a/typo3/sysext/core/ext_tables.sql
+++ b/typo3/sysext/core/ext_tables.sql
@@ -165,7 +165,8 @@ CREATE TABLE pages (
 	KEY t3ver_oid (t3ver_oid,t3ver_wsid),
 	KEY parent (pid,deleted,sorting),
 	KEY alias (alias),
-	KEY determineSiteRoot (is_siteroot)
+	KEY determineSiteRoot (is_siteroot),
+	KEY language_identifier (l10n_parent,sys_language_uid)
 );
 
 #