diff --git a/app/models/pool.rb b/app/models/pool.rb
index c00dc2523..61a557521 100644
--- a/app/models/pool.rb
+++ b/app/models/pool.rb
@@ -51,7 +51,8 @@ class Pool < ApplicationRecord
 
     def post_tags_match(query)
       posts = Post.tag_match(query).select(:id).reorder(nil)
-      joins("CROSS JOIN unnest(post_ids) AS post_id").group(:id).where("post_id IN (?)", posts)
+      pools = Pool.joins("CROSS JOIN unnest(post_ids) AS post_id").group(:id).where("post_id IN (?)", posts)
+      where(id: pools)
     end
 
     def default_order
diff --git a/test/unit/pool_test.rb b/test/unit/pool_test.rb
index 5710439fa..b5f5a2cac 100644
--- a/test/unit/pool_test.rb
+++ b/test/unit/pool_test.rb
@@ -87,6 +87,10 @@ class PoolTest < ActiveSupport::TestCase
       assert_equal([@pool2.id, @pool1.id], Pool.search(post_tags_match: "bkub").pluck(:id))
       assert_equal([@pool2.id, @pool1.id], Pool.search(post_tags_match: "fumimi").pluck(:id))
       assert_equal([@pool2.id], Pool.search(post_tags_match: "bkub fumimi").pluck(:id))
+
+      assert_equal(2, Pool.search(post_tags_match: "bkub").count)
+      assert_equal(2, Pool.search(post_tags_match: "fumimi").count)
+      assert_equal(1, Pool.search(post_tags_match: "bkub fumimi").count)
     end
   end