diff --git a/routers/modelapp/desensitization.go b/routers/modelapp/desensitization.go
index 0c73758a4..8cdc744cf 100644
--- a/routers/modelapp/desensitization.go
+++ b/routers/modelapp/desensitization.go
@@ -17,6 +17,7 @@ import (
 
 var restyClient *resty.Client
 var tplExploreUpload base.TplName = "model/tuomin/upload"
+var uploadUrl string = "/extension/tuomin/upload"
 var allowedContentType = []string{"image/jpeg", "image/jpg", "image/png"}
 
 func ProcessImageUI(ctx *context.Context) {
@@ -28,7 +29,7 @@ func ProcessImage(ctx *context.Context) {
 	file, header, err := ctx.GetFile("file")
 	if err != nil {
 		ctx.Flash.Error(ctx.Tr("model_app.get_file_fail"))
-		ctx.Redirect(setting.AppSubURL + "/" + string(tplExploreUpload))
+		ctx.Redirect(setting.AppSubURL + uploadUrl)
 		return
 	}
 	defer file.Close()
@@ -37,7 +38,7 @@ func ProcessImage(ctx *context.Context) {
 
 	if !isInAllowedContentType(contentType) {
 		ctx.Flash.Error(ctx.Tr("model_app.content_type_unsupported"))
-		ctx.Redirect(setting.AppSubURL + "/" + string(tplExploreUpload))
+		ctx.Redirect(setting.AppSubURL + uploadUrl)
 		return
 	}
 
@@ -46,13 +47,13 @@ func ProcessImage(ctx *context.Context) {
 		"file", header.Filename, contentType, file).Post(setting.ModelApp.DesensitizationUrl + "?mode=" + strconv.Itoa(ctx.QueryInt("mode")))
 	if err != nil {
 		ctx.Flash.Error(ctx.Tr("model_app.process_image_fail"))
-		ctx.Redirect(setting.AppSubURL + "/" + string(tplExploreUpload))
+		ctx.Redirect(setting.AppSubURL  + uploadUrl)
 		return
 	}
 	image, _, err := image.Decode(bytes.NewReader(res.Body()))
 	if err != nil {
 		ctx.Flash.Error(ctx.Tr("model_app.process_image_fail"))
-		ctx.Redirect(setting.AppSubURL + "/" + string(tplExploreUpload))
+		ctx.Redirect(setting.AppSubURL + uploadUrl)
 		return
 	}