diff --git a/htdocs/core/actions_extrafields.inc.php b/htdocs/core/actions_extrafields.inc.php
index b5eb5257eccfa..253ce1f92641b 100644
--- a/htdocs/core/actions_extrafields.inc.php
+++ b/htdocs/core/actions_extrafields.inc.php
@@ -27,7 +27,7 @@
 $maxsizeint=10;
 $mesg=array();
 
-$extrasize=GETPOST('size', 'int');
+$extrasize=GETPOST('size','intcomma');
 $type=GETPOST('type', 'alpha');
 $param=GETPOST('param', 'alpha');