diff --git a/zh/14.6.md b/zh/14.6.md
index e12fef85..f5251a44 100644
--- a/zh/14.6.md
+++ b/zh/14.6.md
@@ -33,7 +33,7 @@ type ProfController struct {
 }
 
 func (this *ProfController) Get() {
-	switch this.Ctx.Params[":pp"] {
+	switch this.Ctx.Param[":pp"] {
 	default:
 		pprof.Index(this.Ctx.ResponseWriter, this.Ctx.Request)
 	case "":