diff --git a/openwrt/Makefile b/openwrt/Makefile
index 7679fda..9410888 100644
--- a/openwrt/Makefile
+++ b/openwrt/Makefile
@@ -5,8 +5,8 @@ PKG_VERSION:=0.6.0
 PKG_RELEASE:=1
 
 # PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
-# PKG_SOURCE_URL:=https://codeload.github.com/SunBK201/UA3F/tar.gz/v$(PKG_VERSION)
-# PKG_HASH:=7d9164e31170e5a54fd83fa31785eaad5fb6ffff36a3336060ae32b7cdda9895
+# PKG_SOURCE_URL:=https://codeload.github.com/SunBK201/UA3F/tar.gz/v$(PKG_VERSION)?
+# PKG_HASH:=660a89fbde16ec769f256e83dc9479bf3fb2309e0c26fe88b3e4e55fbf6fbf8d
 
 PKG_MAINTAINER:=SunBK201 <sunbk201gm@gmail.com>
 PKG_LICENSE:=GPL-3.0-only
@@ -17,6 +17,7 @@ PKG_BUILD_PARALLEL:=1
 PKG_BUILD_FLAGS:=no-mips16
 
 GO_PKG:=github.com/sunbk201/ua3f
+GO_PKG_LDFLAGS_X:= main.version=$(PKG_VERSION)
 
 include $(INCLUDE_DIR)/package.mk
 include $(TOPDIR)/feeds/packages/lang/golang/golang-package.mk
@@ -38,6 +39,10 @@ define Build/Prepare
 	$(CP) ../src/* $(PKG_BUILD_DIR)
 endef
 
+define Package/ua3f/conffiles
+/etc/config/ua3f
+endef
+
 define Package/ua3f/install
 	$(call GoPackage/Package/Install/Bin,$(PKG_INSTALL_DIR))
 
diff --git a/src/main.go b/src/main.go
index 6105b09..0f00286 100644
--- a/src/main.go
+++ b/src/main.go
@@ -53,10 +53,15 @@ func main() {
 	flag.StringVar(&uaPattern, "r", "(iPhone|iPad|Android|Macintosh|Windows|Linux|Apple|Mac OS X)", "UA-Pattern")
 	flag.BoolVar(&enablePartialReplace, "s", false, "Enable Regex Partial Replace")
 	flag.StringVar(&loglevel, "l", "info", "Log level (default: info)")
+	flag.Bool("v", false, "show version")
 	flag.Parse()
 
-	log.SetLogConf(loglevel)
+	if flag.Lookup("v").Value.String() == "true" {
+		fmt.Println("UA3F v" + version)
+		return
+	}
 
+	log.SetLogConf(loglevel)
 	logrus.Info("UA3F v" + version)
 	logrus.Info(fmt.Sprintf("Port: %d", port))
 	logrus.Info(fmt.Sprintf("User-Agent: %s", payload))