diff --git a/broker/migrate/h2/V19__add_user_session_uid_index.sql b/broker/migrate/h2/V19__add_user_session_uid_index.sql
new file mode 100755
index 00000000..b0101f00
--- /dev/null
+++ b/broker/migrate/h2/V19__add_user_session_uid_index.sql
@@ -0,0 +1 @@
+alter table `t_user_session` ADD INDEX `session_uid_index` ( `_uid` );
diff --git a/broker/migrate/mysql/V24__add_user_session_uid_index.sql b/broker/migrate/mysql/V24__add_user_session_uid_index.sql
new file mode 100755
index 00000000..b0101f00
--- /dev/null
+++ b/broker/migrate/mysql/V24__add_user_session_uid_index.sql
@@ -0,0 +1 @@
+alter table `t_user_session` ADD INDEX `session_uid_index` ( `_uid` );