diff --git a/vanilla.go b/vanilla.go
index 34f8f06..6fe35c4 100644
--- a/vanilla.go
+++ b/vanilla.go
@@ -7,6 +7,6 @@ import (
 
 func main() {
 	http.ListenAndServe(":9090", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		fmt.Fprintf("%s %s\n", r.Method, r.URL)
+		fmt.Fprintf(w, "%s %s\n", r.Method, r.URL)
 	}))
 }