diff --git a/c4ctrl.py b/c4ctrl.py
index 232f397..73a388c 100755
--- a/c4ctrl.py
+++ b/c4ctrl.py
@@ -1095,6 +1095,9 @@ is reserved. Please choose a different one.".format(name))
                         # Comment out master, as it would override everything else.
                         if self._topic_is_master(r.topic):
                             fd.write("#{} = {}\n".format(topic, color))
+                        # Also comment out rgb/bell, as it should not usually be set manually.
+                        elif r.topic == "rgb/bell":
+                            fd.write("# Set automatically when club status changes.\n#{} = {}\n".format(topic, color))
                         else:
                             fd.write("{} = {}\n".format(topic, color))