diff --git a/CHANGELOG b/CHANGELOG
index 7410dc0df75d72b3748feb70ba149f988e421efd..ef620269143aa9bc6ce13c102b6c6e671cdc0cb0 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,6 @@
+smasch (1.4.4-1) stable; urgency=high
+  * fix bug in api/availabilities endpoint
+
 smasch (1.4.3-1) stable; urgency=medium
   * make export faster
   * make API endpoint /api/subjects/GENERIC faster
diff --git a/smash/web/api_views/daily_planning.py b/smash/web/api_views/daily_planning.py
index 724eed01e715d20de695077a7021d1c574b5594b..487276f9dfd83d13fbcfa966ba862890667a1ed3 100644
--- a/smash/web/api_views/daily_planning.py
+++ b/smash/web/api_views/daily_planning.py
@@ -465,6 +465,7 @@ def get_workers_for_daily_planning(request: HttpRequest):
 
 
 def availabilities(request, date):
+    date = datetimeify_date(date)
     result_availabilities = []
     holidays = []
     conflicts = []