diff --git a/src/server.rs b/src/server.rs
index 2b833576a..de8fd2e7f 100644
--- a/src/server.rs
+++ b/src/server.rs
@@ -487,15 +487,17 @@ async fn sync_and_watch_config_dir() {
                                 Data::SyncConfig(Some(configs)) => {
                                     let (config, config2) = *configs;
                                     let _chk = crate::ipc::CheckIfRestart::new();
-                                    if cfg0.0 != config {
-                                        cfg0.0 = config.clone();
-                                        Config::set(config);
-                                        log::info!("sync config from root");
-                                    }
-                                    if cfg0.1 != config2 {
-                                        cfg0.1 = config2.clone();
-                                        Config2::set(config2);
-                                        log::info!("sync config2 from root");
+                                    if !config.is_empty() {
+                                        if cfg0.0 != config {
+                                            cfg0.0 = config.clone();
+                                            Config::set(config);
+                                            log::info!("sync config from root");
+                                        }
+                                        if cfg0.1 != config2 {
+                                            cfg0.1 = config2.clone();
+                                            Config2::set(config2);
+                                            log::info!("sync config2 from root");
+                                        }
                                     }
                                     synced = true;
                                 }