Add GeneratedMessageTest.Proto2.cs to EXTRA_DIST
diff --git a/Makefile.am b/Makefile.am
index 3c5ce07..62e8a78 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -107,6 +107,7 @@
csharp/src/Google.Protobuf.Test/FieldCodecTest.cs \
csharp/src/Google.Protobuf.Test/FieldMaskTreeTest.cs \
csharp/src/Google.Protobuf.Test/GeneratedMessageTest.cs \
+ csharp/src/Google.Protobuf.Test/GeneratedMessageTest.Proto2.cs \
csharp/src/Google.Protobuf.Test/Google.Protobuf.Test.csproj \
csharp/src/Google.Protobuf.Test/IssuesTest.cs \
csharp/src/Google.Protobuf.Test/JsonFormatterTest.cs \