diff --git a/controller.go b/controller.go
index b7804f33..cb359a28 100644
--- a/controller.go
+++ b/controller.go
@@ -212,7 +212,7 @@ func (c *Controller) ServeJson() {
 		return
 	}
 	c.Ctx.SetHeader("Content-Length", strconv.Itoa(len(content)), true)
-	c.Ctx.ResponseWriter.Header().Set("Content-Type", "application/json")
+	c.Ctx.ResponseWriter.Header().Set("Content-Type", "application/json;charset=UTF-8")
 	c.Ctx.ResponseWriter.Write(content)
 }
 
@@ -223,7 +223,7 @@ func (c *Controller) ServeXml() {
 		return
 	}
 	c.Ctx.SetHeader("Content-Length", strconv.Itoa(len(content)), true)
-	c.Ctx.ResponseWriter.Header().Set("Content-Type", "application/xml")
+	c.Ctx.ResponseWriter.Header().Set("Content-Type", "application/xml;charset=UTF-8")
 	c.Ctx.ResponseWriter.Write(content)
 }