diff --git a/.drone.yml b/.drone.yml
index ef67311..58aa920 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -61,7 +61,7 @@ steps:
   - cd ./pkg/login-app/cmd && go build -buildvcs=false -v -ldflags="-s -w" -o ../../../dist/login-app . && cd -
   environment:
     CGO_ENABLED: 0
-    GOARM: 7
+    GOARM: 5
 
 - name: deploy binaries
   image: appleboy/drone-scp:linux-arm
diff --git a/token-validator/wg.go b/token-validator/wg.go
index 2bca040..ec44ba4 100644
--- a/token-validator/wg.go
+++ b/token-validator/wg.go
@@ -152,11 +152,8 @@ PersistentKeepalive = 5
 # MyNetwork=%s/%d
 # GWIPv6=%s
 # MyLogin=%s
-`, base64.StdEncoding.EncodeToString(tinfo.SrvPubKey), "82.64.31.248", tinfo.SrvPort, tinfo.CltIPv6, token.SuffixIP, 64, tinfo.CltIPv6, tinfo.CltRange, tinfo.SrvGW6, student.Login)))
-	if version > 2 {
-		w.Write([]byte(fmt.Sprintf(`# KeySign=%s`, base64.StdEncoding.EncodeToString(token.GenKeySign()))))
-	}
-
+# KeySign=%s
+`, base64.StdEncoding.EncodeToString(tinfo.SrvPubKey), "82.64.31.248", tinfo.SrvPort, tinfo.CltIPv6, token.SuffixIP, 64, tinfo.CltIPv6, tinfo.CltRange, tinfo.SrvGW6, student.Login, base64.StdEncoding.EncodeToString(token.GenKeySign()))))
 }
 
 func updateWgTunnel(student *adlin.Student, ps httprouter.Params, body []byte) (interface{}, error) {