diff --git a/core/modules/comment/comment.local_tasks.yml b/core/modules/comment/comment.local_tasks.yml
index 1c0c901..3119823 100644
--- a/core/modules/comment/comment.local_tasks.yml
+++ b/core/modules/comment/comment.local_tasks.yml
@@ -1,14 +1,14 @@
 comment.permalink_tab:
-  route_name: comment_permalink
+  route_name: comment.permalink
   title: 'View comment'
   tab_root_id: comment.permalink_tab
 comment.edit_page_tab:
-  route_name: comment_edit_page
+  route_name: comment.edit_page
   title: 'Edit'
   tab_root_id: comment.permalink_tab
   weight: 0
 comment.confirm_delete_tab:
-  route_name: comment_confirm_delete
+  route_name: comment.confirm_delete
   title: 'Delete'
   tab_root_id: comment.permalink_tab
   weight: 10
diff --git a/core/modules/comment/comment.module b/core/modules/comment/comment.module
index 2034cda..b2ca741 100644
--- a/core/modules/comment/comment.module
+++ b/core/modules/comment/comment.module
@@ -223,32 +223,6 @@ function comment_menu() {
     'route_name' => 'comment.admin_approval',
     'type' => MENU_LOCAL_TASK,
   );
-  $items['comment/%comment'] = array(
-    'title' => 'Comment permalink',
-    'route_name' => 'comment.permalink',
-  );
-  $items['comment/%comment/view'] = array(
-    'title' => 'View comment',
-    'type' => MENU_DEFAULT_LOCAL_TASK,
-  );
-  // Every other comment path uses %, but this one loads the comment directly,
-  // so we don't end up loading it twice (in the page and access callback).
-  $items['comment/%comment/edit'] = array(
-    'title' => 'Edit',
-    'type' => MENU_LOCAL_TASK,
-    'route_name' => 'comment.edit_page',
-  );
-  $items['comment/%comment/approve'] = array(
-    'title' => 'Approve',
-    'weight' => 10,
-    'route_name' => 'comment.approve',
-  );
-  $items['comment/%comment/delete'] = array(
-    'title' => 'Delete',
-    'type' => MENU_LOCAL_TASK,
-    'route_name' => 'comment.confirm_delete',
-    'weight' => 20,
-  );
 
   return $items;
 }
diff --git a/core/modules/comment/comment.routing.yml b/core/modules/comment/comment.routing.yml
index eac774a..3a2ea5c 100644
--- a/core/modules/comment/comment.routing.yml
+++ b/core/modules/comment/comment.routing.yml
@@ -19,6 +19,7 @@ comment.admin_approval:
 comment.edit_page:
   path: '/comment/{comment}/edit'
   defaults:
+    _title: 'Edit'
     _entity_form: 'comment.default'
   requirements:
     _entity_access: 'comment.update'
@@ -26,6 +27,7 @@ comment.edit_page:
 comment.approve:
   path: '/comment/{comment}/approve'
   defaults:
+    _title: 'Approve'
     _content: '\Drupal\comment\Controller\CommentController::commentApprove'
     entity_type: 'comment'
   requirements:
@@ -34,6 +36,7 @@ comment.approve:
 comment.permalink:
   path: '/comment/{comment}'
   defaults:
+    _title: 'Comment permalink'
     _controller: '\Drupal\comment\Controller\CommentController::commentPermalink'
   requirements:
     _entity_access: 'comment.view'
@@ -41,6 +44,7 @@ comment.permalink:
 comment.confirm_delete:
   path: '/comment/{comment}/delete'
   defaults:
+    _title: 'Delete'
     _entity_form: 'comment.delete'
   requirements:
     _entity_access: 'comment.delete'