1 files changed, 2 insertions, 2 deletions
diff --git a/src/ProtocolBuffers.Test/CompatTests/JsonCompatibilityTests.cs b/src/ProtocolBuffers.Test/CompatTests/JsonCompatibilityTests.cs
index 30a08398..23fa2638 100644
--- a/src/ProtocolBuffers.Test/CompatTests/JsonCompatibilityTests.cs
+++ b/src/ProtocolBuffers.Test/CompatTests/JsonCompatibilityTests.cs
@@ -11,7 +11,7 @@ namespace Google.ProtocolBuffers.CompatTests
         protected override object SerializeMessage<TMessage, TBuilder>(TMessage message)
         {
             StringWriter sw = new StringWriter();
-            new JsonFormatWriter(sw)
+            JsonFormatWriter.CreateInstance(sw)
                 .Formatted()
                 .WriteMessage(message);
             return sw.ToString();
@@ -19,7 +19,7 @@ namespace Google.ProtocolBuffers.CompatTests
 
         protected override TBuilder DeerializeMessage<TMessage, TBuilder>(object message, TBuilder builder, ExtensionRegistry registry)
         {
-            new JsonFormatReader((string)message).Merge(builder);
+            JsonFormatReader.CreateInstance((string)message).Merge(builder);
             return builder;
         }
     }