diff --git a/lib/fake_braintree.rb b/lib/fake_braintree.rb
index 6efdc58..c12d7ba 100644
--- a/lib/fake_braintree.rb
+++ b/lib/fake_braintree.rb
@@ -88,7 +88,8 @@ def self.generate_transaction(options = {})
     created_at = options[:created_at] || Time.now
     {'status_history'  => [history_item],
      'subscription_id' => options[:subscription_id],
-     'created_at'      => created_at }
+     'created_at'      => created_at,
+     'amount'          => options[:amount] }
   end
 
   private
diff --git a/spec/fake_braintree_spec.rb b/spec/fake_braintree_spec.rb
index 0e25340..7224b32 100644
--- a/spec/fake_braintree_spec.rb
+++ b/spec/fake_braintree_spec.rb
@@ -107,6 +107,11 @@ def write_to_log
     end
   end
 
+  it "has the correct amount" do
+    transaction = FakeBraintree.generate_transaction(:amount => "20.00")
+    transaction['amount'].should == "20.00"
+  end
+
   it "allows no arguments" do
     expect { FakeBraintree.generate_transaction }.not_to raise_error
   end