diff --git a/doc/api/webstreams.md b/doc/api/webstreams.md
index 72c659795f..735e1b307e 100644
--- a/doc/api/webstreams.md
+++ b/doc/api/webstreams.md
@@ -1042,7 +1042,7 @@ changes:
     description: This class is now exposed on the global object.
 -->
 
-The `WritableStreamDefaultController` manage's the {WritableStream}'s
+The `WritableStreamDefaultController` manages the {WritableStream}'s
 internal state.
 
 #### `writableStreamDefaultController.error([error])`