diff --git a/htdocs/user/class/user.class.php b/htdocs/user/class/user.class.php
index 4287349356e..f0e67c79abe 100644
--- a/htdocs/user/class/user.class.php
+++ b/htdocs/user/class/user.class.php
@@ -1670,7 +1670,7 @@ class User extends CommonObject
 		}
 
 		// If order not defined, we use the setup
-		if ($nameorder < 0) $nameorder=(! $conf->global->MAIN_FIRSTNAME_NAME_POSITION);
+		if ($nameorder < 0) $nameorder=empty($conf->global->MAIN_FIRSTNAME_NAME_POSITION)?1:0;
 
 		if ($nameorder)
 		{