diff --git a/scripts/change_url b/scripts/change_url
index b6f1f80..8fd83e9 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -32,7 +32,7 @@ final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 #=================================================
 # BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
 #=================================================
-ynh_script_progression --message="Backing up the app before changing its url (may take a while)..."
+ynh_script_progression --message="Backing up the app before changing its URL (may take a while)..."
 
 # Backup the current version of the app
 ynh_backup_before_upgrade
@@ -65,7 +65,7 @@ fi
 #=================================================
 # MODIFY URL IN NGINX CONF
 #=================================================
-ynh_script_progression --message="Updating nginx web server configuration..."
+ynh_script_progression --message="Updating NGINX web server configuration..."
 
 nginx_conf_path=/etc/nginx/conf.d/$old_domain.d/$app.conf
 
diff --git a/scripts/install b/scripts/install
index ebe60ed..c6e0b78 100644
--- a/scripts/install
+++ b/scripts/install
@@ -99,9 +99,7 @@ ynh_script_progression --message="Configuring permissions..."
 # Make app public if necessary or protect it
 if [ $is_public -eq 1 ]
 then
-	# Everyone can access the app.
-	# The "main" permission is automatically created before the install script.
-	ynh_permission_update --permission "main" --add "visitors"
+	ynh_permission_update --permission="main" --add="visitors"
 fi
 
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index c64bfd1..56d513f 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -59,7 +59,7 @@ ynh_restore_file --origin_path="$final_path"
 ynh_script_progression --message="Restoring user rights..."
 
 # Restore permissions on app files
-chown -hR $app: $final_path
+chown -R $app: $final_path
 chmod -R 775 $final_path
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 9522fdd..ba80c7d 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -115,7 +115,7 @@ ynh_add_fpm_config
 ynh_script_progression --message="Securing files and directories..."
 
 # Set permissions on app files
-chown -hR $app: $final_path
+chown -R $app: $final_path
 chmod -R 775 $final_path
 
 #=================================================