diff --git a/modules/install/install.admin.controller.php b/modules/install/install.admin.controller.php
index 250a5e48d..4b38c80ab 100644
--- a/modules/install/install.admin.controller.php
+++ b/modules/install/install.admin.controller.php
@@ -335,14 +335,10 @@ class installAdminController extends install
 		list($width, $height, $type_no, $attrs) = @getimagesize($target_file);
 		if($iconname == 'favicon.ico')
 		{
-			if(!preg_match('/^.*\.icon$/i',$type)) {
+			if(!preg_match('/^.*(x-icon|\.icon)$/i',$type)) {
 				Context::set('msg', '*.ico '.Context::getLang('msg_possible_only_file'));
 				return;
 			}
-			if($width && $height && ($width != '16' || $height != '16')) {
-				Context::set('msg', Context::getLang('msg_invalid_format').' (size : 16x16)');
-				return;
-			}
 		}
 		else if($iconname == 'mobicon.png')
 		{