diff --git a/openerp/service/wsgi_server.py b/openerp/service/wsgi_server.py
index 8bbcc18030e3f..a743475b86566 100644
--- a/openerp/service/wsgi_server.py
+++ b/openerp/service/wsgi_server.py
@@ -65,7 +65,7 @@ def xmlrpc_return(start_response, service, method, params, string_faultcode=Fals
 
 def xmlrpc_handle_exception_int(e):
     if isinstance(e, openerp.exceptions.UserError):
-        fault = xmlrpclib.Fault(RPC_FAULT_CODE_WARNING, openerp.tools.ustr(e.value))
+        fault = xmlrpclib.Fault(RPC_FAULT_CODE_WARNING, openerp.tools.ustr(e.name))
         response = xmlrpclib.dumps(fault, allow_none=False, encoding=None)
     elif isinstance(e, openerp.exceptions.RedirectWarning):
         fault = xmlrpclib.Fault(RPC_FAULT_CODE_WARNING, str(e))