diff --git a/scripts/upgrade b/scripts/upgrade
index 2c5a661..03ed82e 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -176,7 +176,7 @@ ynh_use_logrotate --logfile="/var/log/$app/$app-exporter.log"
 # UPDATE A CONFIG FILE
 #=================================================
 ynh_script_progression --message="Updating database configuration..."
-ynh_psql_execute_as_root --sql="CREATE EXTENSION IF NOT EXISTS "uuid-ossp";" --database=$db_name
+ynh_psql_execute_as_root --sql="CREATE EXTENSION IF NOT EXISTS \"uuid-ossp\";" --database=$db_name
 
 ynh_script_progression --message="Updating a configuration file..."