diff --git a/discobert.py b/discobert.py
index ecd716e..95c39de 100644
--- a/discobert.py
+++ b/discobert.py
@@ -438,6 +438,7 @@ while True:
     # 1 => door open
     if doorstate == 1:
         # don't do a doorShutdown when user comes in
+        # or when door stays open after user left
         if (time.time() > (starttime + 15) and inUse == True):
             doorShutdown()