diff --git a/group_vars/server b/group_vars/server
index 65c4c46..c38423e 100644
--- a/group_vars/server
+++ b/group_vars/server
@@ -106,7 +106,7 @@ mysql_users:
     - name: dump
       host: localhost
       password: "{{ vault_mysql_dump }}"
-      priv: "*.*:SELECT,SHOW DATABASES"
+      priv: "*.*:SELECT,SHOW DATABASES,LOCK TABLES"
 
 ttrss_db_password: "{{ vault_mysql_ttrss }}"
 ttrss_log_destination: ""