diff --git a/khal/ui/__init__.py b/khal/ui/__init__.py
index f3ea06de0..69718bfd6 100644
--- a/khal/ui/__init__.py
+++ b/khal/ui/__init__.py
@@ -243,7 +243,7 @@ def __init__(
             set_focus_date_callback=None,
             **kwargs) -> None:
         self._init: bool = True
-        self.parent: 'ClassicView' = parent
+        self.parent: ClassicView = parent
         self.delete_status = delete_status
         self.toggle_delete_instance = toggle_delete_instance
         self.toggle_delete_all = toggle_delete_all
diff --git a/khal/ui/calendarwidget.py b/khal/ui/calendarwidget.py
index 38de6a28d..0e7ce3a6c 100644
--- a/khal/ui/calendarwidget.py
+++ b/khal/ui/calendarwidget.py
@@ -242,7 +242,7 @@ def __init__(self, walker: 'CalendarWalker') -> None:
         self.on_press = walker.on_press
         self._marked: Optional[MarkType] = None
         self._pos_old: Optional[Tuple[int, int]] = None
-        self.body: 'CalendarWalker'
+        self.body: CalendarWalker
         super().__init__(walker)
 
     @property