diff --git a/.travis.yml b/.travis.yml
index de9e7e00947..50f8fb08a24 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -222,6 +222,7 @@ before_script:
     echo '$'dolibarr_main_db_host=\'127.0.0.1\'';' >> $CONF_FILE
     echo '$'dolibarr_main_db_name=\'travis\'';' >> $CONF_FILE
     echo '$'dolibarr_main_db_user=\'travis\'';' >> $CONF_FILE
+    echo '$'dolibarr_main_instance_unique_id=\'travis1234567890\'';' >> $CONF_FILE
     if [ "$DB" = 'mysql' ] || [ "$DB" = 'mariadb' ]; then
       echo '$'dolibarr_main_db_type=\'mysqli\'';' >> $CONF_FILE
       echo '$'dolibarr_main_db_port=\'3306\'';' >> $CONF_FILE