diff --git a/scripts/upgrade b/scripts/upgrade
index af4fa76..738de18 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -11,6 +11,12 @@ source /usr/share/yunohost/helpers
 
 upgrade_type=$(ynh_check_app_version_changed)
 
+# if we update from a version prior to the config panel, create new setting
+if [ -z "${default_matrix_server:-}" ]; then
+	default_matrix_server="matrix.org"
+	ynh_app_setting_set --app="$app" --key=default_matrix_server --value="$default_matrix_server"
+fi
+
 #=================================================
 # "REBUILD" THE APP (DEPLOY NEW SOURCES, RERUN NPM BUILD...)
 #=================================================