Fix typespec

diff --git a/include/mod_push.hrl b/include/mod_push.hrl
index f8c98b3f3286585394efa8328411b33c5f0ca554..9ca6af05db91199d2f33d9e92cf554858fb0aab1 100644 (file)
--- a/include/mod_push.hrl
+++ b/include/mod_push.hrl
@@ -21,4 +21,4 @@
          timestamp = p1_time_compat:timestamp() :: erlang:timestamp(),
          service = {<<"">>, <<"">>, <<"">>}     :: ljid(),
          node = <<"">>                          :: binary(),
-         xml = undefined                        :: xmlel()}).
+         xml                                    :: undefined | xmlel()}).