diff --git a/scripts/upgrade b/scripts/upgrade
index 98ae7e6..ffd7bea 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -168,7 +168,7 @@ ynh_print_info --message="Configuring Kimai2..."
 local_conf="$final_path/config/packages/local.yaml"
 ynh_backup_if_checksum_is_different --file="$local_conf"
 sudo cp ../conf/local.yaml $local_conf
-ynh_replace_string  --match_string="__APP__" "$app" --target_file="$local_conf"
+ynh_replace_string  --match_string="__APP__" --replace_string="$app" --target_file="$local_conf"
 if [ $registration -eq 1  ]
 then
 	ynh_replace_string  --match_string="__REGISTRATION__" --replace_string="true" --target_file="$local_conf"