diff --git a/scripts/upgrade b/scripts/upgrade
index af39965..d0cca62 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -20,7 +20,8 @@ domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 port=$(ynh_app_setting_get --app=$app --key=port)
-if [ $(ynh_compare_current_package_version --comparison gt --version "0.2.0~ynh1") ] 
+
+if ynh_compare_current_package_version --comparison gt --version 0.2.0~ynh1
 then
     redis_port=$(ynh_app_setting_get --app=$app --key=redis_port)
 else
@@ -57,7 +58,7 @@ ynh_script_progression --message="Stopping a systemd service..." --weight=1
 
 ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"
 
-if [ $(ynh_compare_current_package_version --comparison gt --version "0.2.0~ynh1") ] 
+if $(ynh_compare_current_package_version --comparison gt --version "0.2.0~ynh1")
 then
     ynh_systemd_action --service_name=redis-$app --action="stop" --log_path="/var/log/$app/redis-$app.log"
 fi
@@ -117,7 +118,7 @@ echo "$(ynh_package_version --package=srumblr)"
 
 
 
-if [  $(ynh_compare_current_package_version --comparison lt --version "0.2.0~ynh2")  ] 
+if $(ynh_compare_current_package_version --comparison lt --version "0.2.0~ynh2") 
 then
     pushd $final_path
         redis-cli --rdb "redis-$app.rdb"