diff --git a/api/src/Etemplate/Widget/Link.php b/api/src/Etemplate/Widget/Link.php
index 53303d7a44..4c0968cf92 100644
--- a/api/src/Etemplate/Widget/Link.php
+++ b/api/src/Etemplate/Widget/Link.php
@@ -318,7 +318,7 @@ class Link extends Etemplate\Widget
 	 */
 	public static function ajax_delete(int $value)
 	{
-		if ($value <= 0)
+		if (!$value)
 		{
 			throw new InvalidArgumentException();
 		}