diff --git a/install/data/defaults.json b/install/data/defaults.json
index 9c6a6f0c06..5041ff83ea 100644
--- a/install/data/defaults.json
+++ b/install/data/defaults.json
@@ -29,5 +29,6 @@
     "profileImageDimension": 128,
     "requireEmailConfirmation": 0,
     "allowProfileImageUploads": 1,
-    "teaserPost": "last"
-}
+    "teaserPost": "last",
+    "allowPrivateGroups": 1
+}
\ No newline at end of file