diff --git a/libs/hbb_common/src/config.rs b/libs/hbb_common/src/config.rs
index 4af3cd9f9..f47be3da3 100644
--- a/libs/hbb_common/src/config.rs
+++ b/libs/hbb_common/src/config.rs
@@ -89,7 +89,7 @@ pub struct Config {
     #[serde(default)]
     salt: String,
     #[serde(default)]
-    pub key_pair: (Vec<u8>, Vec<u8>), // sk, pk
+    key_pair: (Vec<u8>, Vec<u8>), // sk, pk
     #[serde(default)]
     key_confirmed: bool,
     #[serde(default)]
@@ -321,6 +321,10 @@ impl Config {
         Config::with_extension(Self::path(name))
     }
 
+    pub fn is_empty(&self) -> bool {
+        self.id.is_empty() || self.key_pair.0.is_empty()
+    }
+
     pub fn get_home() -> PathBuf {
         #[cfg(any(target_os = "android", target_os = "ios"))]
         return Self::path(APP_HOME_DIR.read().unwrap().as_str());
diff --git a/src/main.rs b/src/main.rs
index 06d67ceee..7dcd962bf 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -172,7 +172,7 @@ fn import_config(path: &str) {
     let path = std::path::Path::new(path);
     log::info!("import config from {:?} and {:?}", path, path2);
     let config: Config = load_path(path.into());
-    if config.id.is_empty() || config.key_pair.0.is_empty() {
+    if config.is_empty() {
         log::info!("Empty source config, skipped");
         return;
     }