diff --git a/lib/transport_helper.dart b/lib/transport_helper.dart
index 6430ab1..638c538 100644
--- a/lib/transport_helper.dart
+++ b/lib/transport_helper.dart
@@ -101,7 +101,7 @@ class Route {
     Database database = DbHelper.db;
     String segment = Segment.tableName;
     database.execute("""CREATE TABLE IF NOT EXISTS routesegments(
-    id            TEXT PRIMARY KEY AUTOINCREMENT,
+    id            INTEGER PRIMARY KEY AUTOINCREMENT,
     route         INTEGER,
     segment       INTEGER,
     segmentorder  INTEGER, -- TODO: implement sorting