diff --git a/slixmpp_omemo/__init__.py b/slixmpp_omemo/__init__.py
index 9d8074b..e60d752 100644
--- a/slixmpp_omemo/__init__.py
+++ b/slixmpp_omemo/__init__.py
@@ -547,7 +547,7 @@ class XEP_0384(BasePlugin):
             won't use the generated shared secret.
         """
 
-        msg = self.xmpp.make_message(jid)
+        msg = self.xmpp.make_message(mto=jid)
         encrypted = self.encrypt_key_transport_message(
             plaintext=None,
             recipients=[jid],