diff --git a/lib/client-stream.js b/lib/client-stream.js
index <HASH>..<HASH> 100644
--- a/lib/client-stream.js
+++ b/lib/client-stream.js
@@ -102,7 +102,7 @@ class StreamRequest extends Request {
   _onBody (chunk, offset, length) {
     return this.res
       ? this.res.write(chunk.slice(offset, offset + length))
-      : true
+      : null
   }
 
   _onComplete (trailers) {
fix: stream without dst is aborted payload