diff --git a/src/agenda_culturel/views.py b/src/agenda_culturel/views.py
index 781a990..be47d5d 100644
--- a/src/agenda_culturel/views.py
+++ b/src/agenda_culturel/views.py
@@ -1082,7 +1082,19 @@ def export_ical(request, cat=None, tag=None, organisation_pk=None, place_pk=None
     if filter.has_category_parameters():
         return HttpResponseRedirect(filter.get_new_url())
 
-    id_cache = hashlib.md5(filter.get_url().encode("utf8")).hexdigest()
+    id_cache = hashlib.md5(
+        (
+            filter.get_url()
+            + "-"
+            + str(tag)
+            + "-"
+            + str(cat)
+            + "-"
+            + str(organisation_pk)
+            + "-"
+            + str(place_pk)
+        ).encode("utf8")
+    ).hexdigest()
     ical = cache.get(id_cache)
     if not ical:
         calendar = CalendarList(