diff --git a/spec/components/topic_query_spec.rb b/spec/components/topic_query_spec.rb
index 32b8d814421..6506377d494 100644
--- a/spec/components/topic_query_spec.rb
+++ b/spec/components/topic_query_spec.rb
@@ -149,6 +149,10 @@ describe TopicQuery do
         expect(TopicQuery.new(moderator, tags: [tag.name, other_tag.name], match_all_tags: true).list_latest.topics.map(&:id)).to eq([tagged_topic3.id])
       end
 
+      it "returns an empty relation when an invalid tag is passed" do
+        expect(TopicQuery.new(moderator, tags: [tag.name, 'notatag'], match_all_tags: true).list_latest.topics).to be_empty
+      end
+
       it "can return topics with no tags" do
         expect(TopicQuery.new(moderator, no_tags: true).list_latest.topics.map(&:id)).to eq([no_tags_topic.id])
       end