diff --git a/common/legacy.php b/common/legacy.php
index b6d962890..ba25076a4 100644
--- a/common/legacy.php
+++ b/common/legacy.php
@@ -875,6 +875,7 @@ function getDestroyXeVars($vars)
  */
 function getNumberingPath($no, int $size = 3): string
 {
+	$no = intval($no);
 	$mod = pow(10, $size);
 	$output = sprintf('%0' . $size . 'd/', intval($no % $mod));
 	if($no >= $mod)