diff --git a/poezio_omemo/__init__.py b/poezio_omemo/__init__.py
index 4c828c2..5fb331f 100644
--- a/poezio_omemo/__init__.py
+++ b/poezio_omemo/__init__.py
@@ -116,7 +116,7 @@ class Plugin(E2EEPlugin):
             if trust is not None
         ]
 
-    def decrypt(self, message: Message, jid: Optional[JID], tab: ChatTab) -> None:
+    async def decrypt(self, message: Message, jid: Optional[JID], tab: ChatTab) -> None:
         if jid is None:
             self.display_error('Unable to decrypt the message.')
             return None
@@ -133,7 +133,7 @@ class Plugin(E2EEPlugin):
         body = None
         try:
             encrypted = message['omemo_encrypted']
-            body = self.core.xmpp['xep_0384'].decrypt_message(
+            body = await self.core.xmpp['xep_0384'].decrypt_message(
                 encrypted,
                 jid,
                 # Always decrypt. Let us handle how we then warn the user.
@@ -209,7 +209,7 @@ class Plugin(E2EEPlugin):
                 # untrusted/undecided barejid, so we need to make a decision here.
                 # This is where you prompt your user to ask what to do. In
                 # this bot we will automatically trust undecided recipients.
-                self.core.xmpp['xep_0384'].trust(exn.bare_jid, exn.device, exn.ik)
+                await self.core.xmpp['xep_0384'].trust(exn.bare_jid, exn.device, exn.ik)
             # TODO: catch NoEligibleDevicesException
             except EncryptionPrepareException as exn:
                 log.debug('FOO: EncryptionPrepareException: %r', exn.errors)