diff --git a/fileserver/option/option.go b/fileserver/option/option.go
index 76be20f..9c7ba0b 100644
--- a/fileserver/option/option.go
+++ b/fileserver/option/option.go
@@ -46,8 +46,6 @@ var (
 	// notification server
 	EnableNotification bool
 	NotificationURL    string
-	// notification options
-	PrivateKey string
 
 	// GROUP options
 	GroupTableName string
@@ -107,11 +105,6 @@ func LoadFileServerOptions(centralDir string) {
 	if EnableNotification {
 		var notifServer string
 		var notifPort uint32
-		if section, err := config.GetSection("notification"); err == nil {
-			if key, err := section.GetKey("jwt_private_key"); err == nil {
-				PrivateKey = key.String()
-			}
-		}
 		if section, err := config.GetSection("notification"); err == nil {
 			if key, err := section.GetKey("host"); err == nil {
 				notifServer = key.String()
diff --git a/fileserver/sync_api.go b/fileserver/sync_api.go
index 54b36ad..c1ef70b 100644
--- a/fileserver/sync_api.go
+++ b/fileserver/sync_api.go
@@ -771,7 +771,7 @@ func genJWTToken(repoID, user string) (string, error) {
 	}
 
 	token := jwt.NewWithClaims(jwt.GetSigningMethod("HS256"), &claims)
-	tokenString, err := token.SignedString([]byte(option.PrivateKey))
+	tokenString, err := token.SignedString([]byte(seahubPK))
 	if err != nil {
 		err := fmt.Errorf("failed to gen jwt token for repo %s", repoID)
 		return "", err
diff --git a/server/seafile-session.c b/server/seafile-session.c
index 362ea30..d0f7440 100644
--- a/server/seafile-session.c
+++ b/server/seafile-session.c
@@ -204,10 +204,7 @@ seafile_session_new(const char *central_config_dir,
                                              "notification", "port",
                                               NULL);
 
-        notif_server_private_key = g_key_file_get_string (config,
-                                             "notification", "jwt_private_key",
-                                             NULL);
-        session->notif_server_private_key = notif_server_private_key;
+        session->notif_server_private_key = g_strdup (private_key);
     }
 
     if (load_database_config (session) < 0) {