diff --git a/app/models/saved_search.rb b/app/models/saved_search.rb
index d8c356858..db8d33401 100644
--- a/app/models/saved_search.rb
+++ b/app/models/saved_search.rb
@@ -21,6 +21,8 @@ class SavedSearch < ActiveRecord::Base
 
         Cache.get("ss-#{user_id}-#{Cache.hash(label)}", 60) do
           queries = SavedSearch.queries_for(user_id, label)
+          return [] if queries.empty?
+
           json = {
             "key" => Danbooru.config.listbooru_auth_key,
             "queries" => queries
diff --git a/test/unit/saved_search_test.rb b/test/unit/saved_search_test.rb
index 9a7f89503..6bb38a8e1 100644
--- a/test/unit/saved_search_test.rb
+++ b/test/unit/saved_search_test.rb
@@ -72,6 +72,17 @@ class SavedSearchTest < ActiveSupport::TestCase
         assert_equal([1,2,3,4], post_ids)
       end
     end
+
+    context "with a nonexistent label" do
+      setup do
+        SavedSearch.expects(:queries_for).with(1, "empty").returns([])
+      end
+
+      should "return an empty list of ids" do
+        post_ids = SavedSearch.post_ids(1, "empty")
+        assert_equal([], post_ids)
+      end
+    end
   end
 
   context "Creating a saved search" do