diff --git a/docs/api/response.md b/docs/api/response.md
index a450846..acd88ad 100644
--- a/docs/api/response.md
+++ b/docs/api/response.md
@@ -162,7 +162,7 @@ this.set({
 });
 ```
 
-### res.remove(field)
+### response.remove(field)
 
   Remove header `field`.