diff --git a/app/models/saved_search.rb b/app/models/saved_search.rb
index 722f47eb1..d992bf11d 100644
--- a/app/models/saved_search.rb
+++ b/app/models/saved_search.rb
@@ -115,7 +115,7 @@ class SavedSearch < ApplicationRecord
 
       def populate(query, timeout: 10_000)
         redis_key = "search:#{query}"
-        return if redis.exists(redis_key)
+        return if redis.exists?(redis_key)
 
         post_ids = Post.with_timeout(timeout, [], query: query) do
           Post.system_tag_match(query).limit(QUERY_LIMIT).pluck(:id)
diff --git a/test/unit/post_query_builder_test.rb b/test/unit/post_query_builder_test.rb
index d74b08e8e..055e6e765 100644
--- a/test/unit/post_query_builder_test.rb
+++ b/test/unit/post_query_builder_test.rb
@@ -757,8 +757,8 @@ class PostQueryBuilderTest < ActiveSupport::TestCase
       create(:saved_search, query: "aaa", labels: ["zzz"], user: CurrentUser.user)
       create(:saved_search, query: "bbb", user: CurrentUser.user)
 
-      Redis.any_instance.stubs(:exists).with("search:aaa").returns(true)
-      Redis.any_instance.stubs(:exists).with("search:bbb").returns(true)
+      Redis.any_instance.stubs(:exists?).with("search:aaa").returns(true)
+      Redis.any_instance.stubs(:exists?).with("search:bbb").returns(true)
       Redis.any_instance.stubs(:smembers).with("search:aaa").returns([@post1.id])
       Redis.any_instance.stubs(:smembers).with("search:bbb").returns([@post2.id])