diff --git a/data/calendars.json b/data/calendars.json
index 8f53713..52a29a9 100644
--- a/data/calendars.json
+++ b/data/calendars.json
@@ -19,6 +19,7 @@
     },
     "Clubs COF": {
       "PLS": {},
+      "HackENS": {},
       "Club Bouffe": {},
       "Écriv'ENS": {},
       "BOcal": {},
@@ -114,6 +115,10 @@
       "22rQF3gjjz8LifZC": {
         "name": "La Psychédéliste",
         "short_name": "Psychédéliste"
+      },
+      "AfHYkm3gqQ4fRRj5": {
+        "name": "HackENS",
+        "default_location": "Cave d'hackENS"
       }
     },
     "frama-agenda": {