diff --git a/templates/mariadb_backup/check_replication.erb b/templates/mariadb_backup/check_replication.erb
index f133caa..8d4eab6 100755
--- a/templates/mariadb_backup/check_replication.erb
+++ b/templates/mariadb_backup/check_replication.erb
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-result="$(docker exec mariadb_backup_mariadb_backup_1 mysql -p<%= @mysql_root_password %> -BN -e 'show status like "slave_running"')"
+result="$(docker exec -u root mariadb_backup_mariadb_backup_1 mysql -p<%= @mysql_root_password %> -BN -e 'show status like "slave_running"')"
 if [[ "${result}" == "Slave_running	ON" ]]; then
   echo "OK: Replica running"
   exit 0