diff --git a/src/teams_ctrl.py b/src/teams_ctrl.py
index 83a27e5..85cc845 100644
--- a/src/teams_ctrl.py
+++ b/src/teams_ctrl.py
@@ -136,6 +136,7 @@ class State:
             else:
                 for btn in BUTTONS.all:
                     self.ctrl.set_color(key_num=btn.num, color=(0, 0, 0))
+                return None
         if "isMuted" in changes:
             key_num = BUTTONS.mic.num
             if changes["isMuted"]: