diff --git a/plugins/utilities/fast_epic_toggle.py b/plugins/utilities/fast_epic_toggle.py
index 03914d9..c165545 100644
--- a/plugins/utilities/fast_epic_toggle.py
+++ b/plugins/utilities/fast_epic_toggle.py
@@ -46,5 +46,5 @@ class FastEpicSwitcher(bauiv1lib.party.PartyWindow):
 
 
 class ByANES(babase.Plugin):
-    def on_app_running(self):
+    def on_app_running(self) -> None:
         bauiv1lib.party.PartyWindow = FastEpicSwitcher