diff --git a/docweb/main.ent b/docweb/main.ent
index 4452865d7e..cfb2673439 100644
--- a/docweb/main.ent
+++ b/docweb/main.ent
@@ -114,3 +114,4 @@ questions not handled in the licenses, please ask at
   
 <!-- error codes -->
 <!ENTITY docweb.error.404 'File Not Found'>
+<!ENTITY docweb.error.nomesg 'No message available.'>