diff --git a/lib/internal/streams/end-of-stream.js b/lib/internal/streams/end-of-stream.js
index 8061ce1849525a..d6e1c5804eaf4a 100644
--- a/lib/internal/streams/end-of-stream.js
+++ b/lib/internal/streams/end-of-stream.js
@@ -28,10 +28,8 @@ function isWritable(stream) {
 function isWritableFinished(stream) {
   if (stream.writableFinished) return true;
   const wState = stream._writableState;
-  if (wState && wState.finished) return true;
-  if (wState && wState.ended && wState.length === 0 &&
-    !wState.errored) return true;
-  return false;
+  if (!wState || wState.errored) return false;
+  return wState.finished || (wState.ended && wState.length === 0);
 }
 
 function eos(stream, opts, callback) {