1 files changed, 7 insertions, 0 deletions
diff --git a/spec/arel/attributes/attribute_spec.rb b/spec/arel/attributes/attribute_spec.rb
index f9eb56391e..d6f07f8d99 100644
--- a/spec/arel/attributes/attribute_spec.rb
+++ b/spec/arel/attributes/attribute_spec.rb
@@ -8,6 +8,13 @@ module Arel
           relation = Table.new(:users)
           relation[:id].count.should be_kind_of Nodes::Count
         end
+
+        it 'should take a distinct param' do
+          relation = Table.new(:users)
+          count = relation[:id].count(nil)
+          count.should be_kind_of Nodes::Count
+          count.distinct.should be_nil
+        end
       end
 
       describe '#eq' do