diff --git a/spec/squeel/adapters/active_record/relation_extensions_spec.rb b/spec/squeel/adapters/active_record/relation_extensions_spec.rb
index 2754316..e5df0d2 100644
--- a/spec/squeel/adapters/active_record/relation_extensions_spec.rb
+++ b/spec/squeel/adapters/active_record/relation_extensions_spec.rb
@@ -800,6 +800,17 @@ module ActiveRecord
             end
           end
 
+          it 'creates new records with values from a polymorphic association' do
+            if activerecord_version_at_least '4.0.0'
+              article = Article.first
+              note = Note.where(notable: article).new
+              note.notable_id.should eq article.id
+              note.notable_type.should eq 'Article'
+            else
+              pending 'Not required pre-4.0'
+            end
+          end
+
         end
 
         describe '#as' do