diff --git a/python/src/deltachat/message.py b/python/src/deltachat/message.py
index 370863231..e94ba0e1c 100644
--- a/python/src/deltachat/message.py
+++ b/python/src/deltachat/message.py
@@ -276,6 +276,10 @@ class Message(object):
         """ return True if it's a file message. """
         return self._view_type == const.DC_MSG_FILE
 
+    def mark_seen(self):
+        """ mark this message as seen. """
+        self.account.mark_seen_messages([self.id])
+
 
 # some code for handling DC_MSG_* view types
 
diff --git a/python/tests/test_account.py b/python/tests/test_account.py
index cc26d8feb..191178b84 100644
--- a/python/tests/test_account.py
+++ b/python/tests/test_account.py
@@ -805,7 +805,7 @@ class TestOnlineAccount:
 
         lp.sec("check that a second call to mark_seen does not create change or smtp job")
         ac2._evtracker.consume_events()
-        ac2.mark_seen_messages([msg_in])
+        msg_in.mark_seen()
         try:
             ac2._evtracker.get_matching("DC_EVENT_MSG_READ", timeout=0.01)
         except queue.Empty:
diff --git a/python/tox.ini b/python/tox.ini
index 1b6f0dbd9..a1d26c4a1 100644
--- a/python/tox.ini
+++ b/python/tox.ini
@@ -8,7 +8,7 @@ envlist =
 [testenv]
 commands = 
     pytest -n6 --reruns 2 --reruns-delay 5 -v -rsXx --ignored {posargs: tests examples}
-    # python tests/package_wheels.py {toxworkdir}/wheelhouse
+    python tests/package_wheels.py {toxworkdir}/wheelhouse
 passenv = 
     TRAVIS 
     DCC_RS_DEV