diff --git a/server/http_handler.go b/server/http_handler.go
index 0226483..f94a260 100644
--- a/server/http_handler.go
+++ b/server/http_handler.go
@@ -44,15 +44,18 @@ func NewHoustonHandler() HoustonServerWithHandler {
 
 func (h *houstonHandler) RegisterHandlers(serveMux *http.ServeMux, prefix string) error {
 	logger.Println("houstonHandler registed")
-	serveMux.Handle("/"+path.Join(prefix, "houston"), h)
+	if len(prefix) > 0 {
+		prefix = "/" + prefix
+	}
+	serveMux.Handle(prefix, h)
 
 	fsx := http.FileServer(http.Dir("deploys"))
-	serveMux.Handle(fmt.Sprintf("/%s/deploys/", prefix), http.StripPrefix(fmt.Sprintf("/%s/deploys/", prefix), fsx))
+	serveMux.Handle(fmt.Sprintf("%s/deploys/", prefix), http.StripPrefix(fmt.Sprintf("%s/deploys/", prefix), fsx))
 
 	ufsx := http.FileServer(http.Dir("downloads"))
-	serveMux.Handle(fmt.Sprintf("/%s/houston/downloads/", prefix), http.StripPrefix(fmt.Sprintf("/%s/houston/downloads/", prefix), ufsx))
+	serveMux.Handle(fmt.Sprintf("%s/downloads/", prefix), http.StripPrefix(fmt.Sprintf("%s/downloads/", prefix), ufsx))
 
-	serveMux.HandleFunc("/"+path.Join(prefix, "upload"), func(w http.ResponseWriter, r *http.Request) {
+	serveMux.HandleFunc(fmt.Sprintf("%s/upload", prefix), func(w http.ResponseWriter, r *http.Request) {
 		defer func() {
 			s := recover()
 			if s != nil {