diff --git a/doc/api/stream.md b/doc/api/stream.md
index 2a49b4b34f9fb1..205cc440d98ef7 100644
--- a/doc/api/stream.md
+++ b/doc/api/stream.md
@@ -1922,7 +1922,7 @@ user programs.
 
 `transform._transform()` is never called in  parallel; streams implement a
 queue mechanism, and to receive the next chunk, `callback` must be
-called, either synchronously or asychronously.
+called, either synchronously or asynchronously.
 
 #### Class: stream.PassThrough