diff --git a/htdocs/user/class/api_users.class.php b/htdocs/user/class/api_users.class.php
index e68ecb8bc1d..eb377b7685e 100644
--- a/htdocs/user/class/api_users.class.php
+++ b/htdocs/user/class/api_users.class.php
@@ -314,11 +314,13 @@ class Users extends DolibarrApi
 	/**
 	 * Update account
 	 *
-	 * @param int   $id             Id of account to update
-	 * @param array $request_data   Datas
-	 * @return array
+	 * @param 	int   		$id             	Id of account to update
+	 * @param	array 		$request_data   	Datas
+	 * @return 	array|mixed						Record after update
 	 *
-	 * @throws 	RestException
+	 * @throws RestException 401 Not allowed
+	 * @throws RestException 404 Not found
+	 * @throws RestException 500 System error
 	 */
 	public function put($id, $request_data = null)
 	{
diff --git a/test/phpunit/RestAPIUserTest.php b/test/phpunit/RestAPIUserTest.php
index 979daa521b9..d74ecb5534f 100644
--- a/test/phpunit/RestAPIUserTest.php
+++ b/test/phpunit/RestAPIUserTest.php
@@ -169,7 +169,7 @@ class RestAPIUserTest extends PHPUnit\Framework\TestCase
         $this->assertEquals($result['curl_error_no'], '');
         $object=json_decode($result['content'], true);
         $this->assertNotNull($object, "Parsing of json result must not be null");
-        $this->assertEquals(404, $object['error']['code']);
+        $this->assertEquals(404, $object['error']['code'], 'Error code is not 404');
 
         $url = $this->api_url.'/users/1?api_key='.$this->api_key;