diff --git a/htdocs/core/class/commondocgenerator.class.php b/htdocs/core/class/commondocgenerator.class.php
index 72d45f2467c..be23895fe7f 100644
--- a/htdocs/core/class/commondocgenerator.class.php
+++ b/htdocs/core/class/commondocgenerator.class.php
@@ -1296,7 +1296,7 @@ abstract class CommonDocGenerator
         {
             // Sort extrafields by rank
             uasort($fields, function ($a, $b) {
-                return  ($a->rank > $b->rank) ? -1 : 1;
+                return  ($a->rank > $b->rank) ? 1 : -1;
 			});
 
             // define some HTML content with style