Fix copyright notices
diff --git a/src/ProtocolBuffers.Test/GeneratedMessageTest.cs b/src/ProtocolBuffers.Test/GeneratedMessageTest.cs
index 3e4324f..aee11d8 100644
--- a/src/ProtocolBuffers.Test/GeneratedMessageTest.cs
+++ b/src/ProtocolBuffers.Test/GeneratedMessageTest.cs
@@ -31,10 +31,9 @@
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
using System;
using System.Collections.Generic;
-using Google.ProtocolBuffers.Descriptors;
+using Google.ProtocolBuffers.Collections;
using Google.ProtocolBuffers.TestProtos;
using NUnit.Framework;
-using Google.ProtocolBuffers.Collections;
namespace Google.ProtocolBuffers {
[TestFixture]