diff --git a/poezio/tabs/muctab.py b/poezio/tabs/muctab.py
index 7885991a..b2c4a9df 100644
--- a/poezio/tabs/muctab.py
+++ b/poezio/tabs/muctab.py
@@ -1490,7 +1490,7 @@ class MucTab(ChatTab):
         """
         self.leave_room(msg)
         if config.get('synchronise_open_rooms'):
-            self.core.bookmarks.remove(self.jid)
+            self.core.bookmarks[self.jid].autojoin = False
             self.core.bookmarks.save(self.core.xmpp)
         self.core.close_tab(self)