diff --git a/mypy.ini b/mypy.ini
index 94d5dff40..84a6fb239 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -52,3 +52,8 @@ disallow_subclassing_any = False
 
 [mypy-qutebrowser.browser.browsertab]
 disallow_untyped_defs = True
+disallow_incomplete_defs = True
+
+[mypy-qutebrowser.misc.objects]
+disallow_untyped_defs = True
+disallow_incomplete_defs = True