diff --git a/config/sync/user.role.anonymous.yml b/config/sync/user.role.anonymous.yml
index f8da444..834df1e 100644
--- a/config/sync/user.role.anonymous.yml
+++ b/config/sync/user.role.anonymous.yml
@@ -9,6 +9,7 @@ label: 'anonymous user'
 weight: 0
 is_admin: false
 permissions:
+  - 'access comments'
   - 'access content'
   - 'access forward'
   - 'access news feeds'
@@ -19,6 +20,7 @@ permissions:
   - 'count ad clicks'
   - 'count ad impressions'
   - 'diff view changes'
+  - 'post comments'
   - 'search Google CSE'
   - 'search content'
   - 'use text format 1'
diff --git a/config/sync/user.role.authenticated.yml b/config/sync/user.role.authenticated.yml
index 8024226..9a0a532 100644
--- a/config/sync/user.role.authenticated.yml
+++ b/config/sync/user.role.authenticated.yml
@@ -9,6 +9,7 @@ label: 'authenticated user'
 weight: 0
 is_admin: false
 permissions:
+  - 'access comments'
   - 'access content'
   - 'access forward'
   - 'access news feeds'
@@ -26,6 +27,7 @@ permissions:
   - 'edit own blog content'
   - 'edit own forum content'
   - 'edit own weblinks'
+  - 'post comments'
   - 'search content'
   - 'use text format 1'
   - 'use text format 3'