diff --git a/khal/plugins.py b/khal/plugins.py
index f15b3794e..4a8705a49 100644
--- a/khal/plugins.py
+++ b/khal/plugins.py
@@ -20,4 +20,4 @@ def _load_color_themes() -> dict[str, Mapping[str, Tuple[str, str, str, str, str
     color_theme_entrypoints = importlib_metadata.entry_points(group="khal.color_theme")
     return {ep.name: ep.load() for ep in color_theme_entrypoints}
 
-THEMES: Mapping[str, Mapping[str, dict[str, Tuple[str, str, str, str, str]]]] = _load_color_themes()
+THEMES: dict[str, Mapping[str, Tuple[str, str, str, str, str]]] = _load_color_themes()