diff --git a/agenda/data.py b/agenda/data.py
index a18d74d..d640557 100644
--- a/agenda/data.py
+++ b/agenda/data.py
@@ -42,7 +42,7 @@ here = dateutil.tz.tzlocal()
 # deadline to file tax return
 # credit card expiry dates
 # morzine ski lifts
-# chalet availablity calendar
+# chalet availability calendar
 
 # starlink visible