1 files changed, 6 insertions, 2 deletions
diff --git a/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestImportProto3.cs b/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestImportProto3.cs
index 5afcb4e0..d30f22db 100644
--- a/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestImportProto3.cs
+++ b/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestImportProto3.cs
@@ -72,9 +72,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public ImportMessage() { }
+    public ImportMessage() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public ImportMessage(ImportMessage other) {
+    public ImportMessage(ImportMessage other) : this() {
       d_ = other.d_;
     }