diff --git a/views/documents/pdf.ctp b/views/documents/pdf.ctp
index d3f92b79..0abfefa7 100755
--- a/views/documents/pdf.ctp
+++ b/views/documents/pdf.ctp
@@ -29,7 +29,7 @@ $issue_date = $document['Quote']['date_issued'];
 
 $pdfdoc->docRef = $enquiryNumber;
 if($document['Quote']['revision'] > 0) {
-    $enquiryNumber = $enquiryNumber.'rev'.$document['Quote']['revision'];
+    $enquiryNumber = $enquiryNumber.'.'.$document['Quote']['revision'];
 }