diff --git a/manifest.json b/manifest.json
index 56d0121..6727fcd 100644
--- a/manifest.json
+++ b/manifest.json
@@ -7,7 +7,7 @@
     "fr": "Créer et configurer des réseaux wifi, partager l'accès a Internet et utiliser les applications Yunohost via wifi"
   },
   "url": "https://github.com/labriqueinternet/hotspot_ynh",
-  "version": "1.2.0~ynh3",
+  "version": "1.2.0~ynh4",
   "license": "AGPL-3.0",
   "maintainer": {
     "name": "Julien Vaubourg",
diff --git a/scripts/install b/scripts/install
index 2643c4f..1af354d 100644
--- a/scripts/install
+++ b/scripts/install
@@ -215,9 +215,10 @@ ynh_app_setting_set --app=$app --key=final_path --value=$final_path
 mkdir -pm 0755 ${final_path}/
 cp -a ../sources/* ${final_path}/
 
-chown -R $app: ${final_path}/
+chown -R $app:$app ${final_path}/
 chmod -R 0644 ${final_path}/*
 find ${final_path}/ -type d -exec chmod +x {} \;
+chmod o-rwx ${final_path}
 
 #=================================================
 # NGINX CONFIGURATION
@@ -249,6 +250,7 @@ echo "DAEMON_CONF=/etc/hostapd/hostapd.conf" > /etc/default/hostapd
 
 # Apply configuration
 ynh_add_config --template="config.php.tpl" --destination="$final_path/config.php"
+chown $app:$app "$final_path/config.php"
 
 # Set default inits
 # The boot order of these services are important, so they are disabled by default
diff --git a/scripts/restore b/scripts/restore
index 9093bb9..bc1c089 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -97,7 +97,10 @@ ynh_system_user_create --username=$app
 ynh_script_progression --message="Restoring user rights..."
 
 # Restore permissions on app files
-chown -R $app: $final_path
+chown -R $app:$app ${final_path}/
+chmod -R 0644 ${final_path}/*
+find ${final_path}/ -type d -exec chmod +x {} \;
+chmod o-rwx ${final_path}
 
 #=================================================
 # RESTORE THE PHP-FPM CONFIGURATION
diff --git a/scripts/upgrade b/scripts/upgrade
index d6df7a7..ee7beb6 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -163,6 +163,7 @@ ynh_replace_string --match_string="__PHPVERSION__" --replace_string="${phpversio
 ynh_script_progression --message="Modifying a config file..."
 
 ynh_add_config --template="config.php.tpl" --destination="$final_path/config.php"
+chown $app:$app "$final_path/config.php"
 
 #=================================================
 # SETUP SYSTEMD
@@ -180,9 +181,10 @@ ynh_add_systemd_config --service=$service_name
 ynh_script_progression --message="Securing files and directories..."
 
 # Set permissions on app files
-chown -R $app: ${final_path}/
+chown -R $app:$app ${final_path}/
 chmod -R 0644 ${final_path}/*
 find ${final_path}/ -type d -exec chmod +x {} \;
+chmod o-rwx "${final_path}"
 
 #=================================================
 # INTEGRATE SERVICE IN YUNOHOST