diff --git a/test/serializer_support_test.rb b/test/serializer_support_test.rb
index 2e963027..e82f1fb1 100644
--- a/test/serializer_support_test.rb
+++ b/test/serializer_support_test.rb
@@ -4,6 +4,13 @@ class RandomModel
   include ActiveModel::SerializerSupport
 end
 
+class OtherRandomModel
+  include ActiveModel::SerializerSupport
+end
+
+class OtherRandomModelSerializer
+end
+
 class RandomModelCollection
   include ActiveModel::ArraySerializerSupport
 end
@@ -18,6 +25,10 @@ class SerializerSupportTest < ActiveModel::TestCase
     assert_equal nil, RandomModel.new.active_model_serializer
   end
 
+  test "it returns a deducted serializer if it exists exists" do
+    assert_equal OtherRandomModelSerializer, OtherRandomModel.new.active_model_serializer
+  end
+
   test "it returns ArraySerializer for a collection" do
     assert_equal ActiveModel::ArraySerializer, RandomModelCollection.new.active_model_serializer
   end