diff --git a/selfdrive/ui/carrot.cc b/selfdrive/ui/carrot.cc
index 9840005..dfb56c1 100644
--- a/selfdrive/ui/carrot.cc
+++ b/selfdrive/ui/carrot.cc
@@ -2209,6 +2209,8 @@ public:
         dy = by + 77;
 
         // 显示巡航设定速度（km/h）
+        SubMaster& sm = *(s->sm);
+        auto carState = sm["carState"].getCarState();
         float setSpeed = carState.getCruiseState().getSpeed() * 3.6;  // 转换为 km/h
         sprintf(gap_str, "%.0f", setSpeed);
         ui_draw_text(s, dx, dy, gap_str, 40, COLOR_WHITE, BOLD);