diff --git a/htdocs/core/modules/stocktransfer/doc/pdf_eagle_proforma.modules.php b/htdocs/core/modules/stocktransfer/doc/pdf_eagle_proforma.modules.php
index aabaaa9edc7..bd9e4d3f11a 100644
--- a/htdocs/core/modules/stocktransfer/doc/pdf_eagle_proforma.modules.php
+++ b/htdocs/core/modules/stocktransfer/doc/pdf_eagle_proforma.modules.php
@@ -276,7 +276,7 @@ class pdf_eagle_proforma extends ModelePDFCommandes
 			} else {
 				$objectref = dol_sanitizeFileName($object->ref);
 				$dir = $conf->stocktransfer->multidir_output[$conf->entity]."/".$object->element."/".$objectref;
-				$file = $dir."/".$objectref.".pdf";
+				$file = $dir."/".$objectref."-proforma.pdf";
 			}
 
 			if (!file_exists($dir)) {