diff --git a/htdocs/core/modules/action/rapport.pdf.php b/htdocs/core/modules/action/rapport.pdf.php
index 8b80492685d..0659c39d394 100644
--- a/htdocs/core/modules/action/rapport.pdf.php
+++ b/htdocs/core/modules/action/rapport.pdf.php
@@ -125,7 +125,7 @@ class CommActionRapport
 		$outputlangs->loadLangs(array("main", "dict", "companies", "bills", "products"));
 
 		$dir = $conf->agenda->dir_temp."/";
-		$file = $dir."actions-".$this->month."-".$this->year.".pdf";
+		$file = $dir."actions-".sprintf("%02d", $this->month)."-".sprintf("%04d", $this->year).".pdf";
 
 		if (!file_exists($dir)) {
 			if (dol_mkdir($dir) < 0) {