diff --git a/app/helpers/page_tabs/users_helper.rb b/app/helpers/page_tabs/users_helper.rb
index 4705ea28c80..9a9bb9d1cc7 100644
--- a/app/helpers/page_tabs/users_helper.rb
+++ b/app/helpers/page_tabs/users_helper.rb
@@ -3,7 +3,7 @@
 module PageTabs
   module UsersHelper
     def user_page_tabs(user, active_tab:)
-      comment_count = user.comments.where.not(commentable_type: 'Talk').length
+      comment_count = user.comments.without_talk.length
       tabs = []
       tabs << { name: 'プロフィール', link: user_path(user) }
       tabs << { name: 'ポートフォリオ', link: user_portfolio_path(user) }
diff --git a/app/models/comment.rb b/app/models/comment.rb
index 383074b2d85..d674b4b8897 100644
--- a/app/models/comment.rb
+++ b/app/models/comment.rb
@@ -18,6 +18,8 @@ class Comment < ApplicationRecord
 
   mentionable_as :description, hook_name: :after_commit
 
+  scope :without_talk, -> { where.not(commentable_type: 'Talk') }
+
   class << self
     def commented_users
       User.with_attached_avatar
diff --git a/app/views/users/_activity_counts.html.slim b/app/views/users/_activity_counts.html.slim
index 7f95326824b..61338eacc30 100644
--- a/app/views/users/_activity_counts.html.slim
+++ b/app/views/users/_activity_counts.html.slim
@@ -18,8 +18,8 @@ dl.card-counts__items
       dt.card-counts__item-label
         | コメント
       dd.card-counts__item-value
-        = link_to_if !user.comments.empty?,
-            user.comments.size, user_comments_path(user)
+        = link_to_if !user.comments.without_talk.empty?,
+            user.comments.without_talk.size, user_comments_path(user)
   .card-counts__item
     .card-counts__item-inner
       dt.card-counts__item-label
diff --git a/test/fixtures/comments.yml b/test/fixtures/comments.yml
index 732434e4178..f261378c7aa 100644
--- a/test/fixtures/comments.yml
+++ b/test/fixtures/comments.yml
@@ -140,11 +140,13 @@ comment42:
 commentOfTalk:
   user: komagata
   commentable: talk1 (Talk)
+  commentable_type: Talk
   description: "これは相談部屋の会話です。"
   updated_at: "2019-01-02 00:00:00 JST"
 
 commentOfTalk2:
   user: hajime
   commentable: talk9 (Talk)
+  commentable_type: Talk
   description: "これは相談部屋の会話です。"
   updated_at: "2019-01-02 00:00:00 JST"
diff --git a/test/models/comment_test.rb b/test/models/comment_test.rb
index cfabde265ae..b726495eb15 100644
--- a/test/models/comment_test.rb
+++ b/test/models/comment_test.rb
@@ -14,6 +14,13 @@ class CommentTest < ActiveSupport::TestCase
     AbstractNotifier.delivery_mode = @delivery_mode
   end
 
+  test '.without_talk' do
+    non_talk_comment_count = Comment.without_talk.count
+    all_comment_count = Comment.count
+    only_talk_comment_count = Comment.where(commentable_type: 'Talk').count
+    assert_equal non_talk_comment_count, all_comment_count - only_talk_comment_count
+  end
+
   test '.commented_users' do
     report = reports(:report4)
     users = report.comments.commented_users