diff --git a/htdocs/categories/index.php b/htdocs/categories/index.php
index 041226a8131..d338e4d95d4 100644
--- a/htdocs/categories/index.php
+++ b/htdocs/categories/index.php
@@ -222,7 +222,7 @@ $nbofentries = (count($data) - 1);
 
 $morethan1level = 0;
 foreach($data as $record) {
-	if (!empty($record['fk_menu'])) {
+	if (!empty($record['fk_menu']) && $record['fk_menu'] > 0) {
 		$morethan1level = 1;
 	}
 }