diff --git a/scripts/upgrade b/scripts/upgrade
index df55a79..2b32fb0 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -9,6 +9,8 @@
 source _common.sh
 source /usr/share/yunohost/helpers
 
+upgrade_type=$(ynh_check_app_version_changed)
+
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
 #=================================================