diff --git a/lib/sink.js b/lib/sink.js
index 54923705..cfab4698 100644
--- a/lib/sink.js
+++ b/lib/sink.js
@@ -39,7 +39,7 @@ function sink(stream) {
 
     if (hasListeners(stream)) {
       sinkAdded = false;
-      return stream.unpipe(sinkStream);
+      stream.unpipe(sinkStream);
     }
   }