diff --git a/core/src/main/java/com/google/net/stubby/newtransport/okhttp/OkHttpClientTransport.java b/core/src/main/java/com/google/net/stubby/newtransport/okhttp/OkHttpClientTransport.java
index 114e024..d9f3be7 100644
--- a/core/src/main/java/com/google/net/stubby/newtransport/okhttp/OkHttpClientTransport.java
+++ b/core/src/main/java/com/google/net/stubby/newtransport/okhttp/OkHttpClientTransport.java
@@ -152,7 +152,7 @@
       abort(new Status(Code.INTERNAL, "Transport stopped"));
       // Send GOAWAY with lastGoodStreamId of 0, since we don't expect any server-initiated streams.
       // The GOAWAY is part of graceful shutdown.
-      frameWriter.goAway(0, ErrorCode.NO_ERROR, null);
+      frameWriter.goAway(0, ErrorCode.NO_ERROR, new byte[0]);
     }
     stopIfNecessary();
   }