diff --git a/mod_deny_omemo/src/mod_deny_omemo.erl b/mod_deny_omemo/src/mod_deny_omemo.erl
index bd7dc68..4171cf5 100644
--- a/mod_deny_omemo/src/mod_deny_omemo.erl
+++ b/mod_deny_omemo/src/mod_deny_omemo.erl
@@ -40,7 +40,8 @@
 -define(DEVICELIST_NODE, ?NS_AXOLOTL ".devicelist").
 
 -type c2s_state() :: ejabberd_c2s:state().
--type hook_result() :: {stanza(), c2s_state()} | {stop, {drop, c2s_state()}}.
+-type hook_result() :: {stanza() | drop, c2s_state()} |
+		       {stop, {drop, c2s_state()}}.
 
 %%--------------------------------------------------------------------
 %% gen_mod callbacks.