diff --git a/scripts/change_url b/scripts/change_url
index e958a45d..5a09651c 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -7,6 +7,7 @@
 #=================================================
 
 source _common.sh
+source ynh_supervisor
 source /usr/share/yunohost/helpers
 
 #=================================================