diff --git a/lib/transport_helper.dart b/lib/transport_helper.dart
index 38e7ab3..54918e9 100644
--- a/lib/transport_helper.dart
+++ b/lib/transport_helper.dart
@@ -812,17 +812,21 @@ class Line {
     VehicleType.regionalTrain,
   ];
 
-  factory Line.fromJson(Map<String, dynamic> json) => Line(
-    lineId: json["lineId"] as String,
-    name: json["name"] as String,
-    mode: _vehicleTypeAsCatCode[int.parse(json["catCode"] as String)],
-    fgColor:
-        Color.fromJson(json["icon"]["foregroundColor"]) as Color? ??
-        Color(r: 255, g: 255, b: 255), // fallback
-    bgColor:
-        Color.fromJson(json["icon"]["backgroundColor"]) as Color? ??
-        Color(r: 50, g: 50, b: 50), // fallback
-  );
+  factory Line.fromJson(Map<String, dynamic> json) {
+    Line line = Line(
+      lineId: json["lineId"] as String,
+      name: json["name"] as String,
+      mode: _vehicleTypeAsCatCode[int.parse(json["catCode"] as String)],
+      fgColor:
+          Color.fromJson(json["icon"]["foregroundColor"]) as Color? ??
+          Color(r: 255, g: 255, b: 255), // fallback
+      bgColor:
+          Color.fromJson(json["icon"]["backgroundColor"]) as Color? ??
+          Color(r: 50, g: 50, b: 50), // fallback
+    );
+    line.dbInsert();
+    return line;
+  }
   static void initLineTable() async {
     Database database = DbHelper.db;
     database.execute("""CREATE TABLE IF NOT EXISTS '$tableName'(