diff --git a/modoboa/extensions/admin/fixtures/demo.json b/modoboa/extensions/admin/fixtures/demo.json
index 1d3150f57..d3691219b 100644
--- a/modoboa/extensions/admin/fixtures/demo.json
+++ b/modoboa/extensions/admin/fixtures/demo.json
@@ -281,6 +281,14 @@
             "name": "postfix_relay_domains"
         }
     },
+    {
+        "pk": 8,
+        "model": "core.extension",
+        "fields": {
+            "enabled": true,
+            "name": "radicale"
+        }
+    },
     {
         "pk": "admin@demo.local",
         "model": "admin.quota",