diff --git a/Handler/Common.hs b/Handler/Common.hs
index ce06c17..3330be0 100644
--- a/Handler/Common.hs
+++ b/Handler/Common.hs
@@ -219,6 +219,7 @@ sendMail to subject body =
         , partEncoding = None
         , partHeaders = []
         , partContent = PartContent $ E.encodeUtf8 body
+        , partDisposition = DefaultDisposition
         }]]
       }