diff --git a/sdcl-firmware/Core/Src/main.c b/sdcl-firmware/Core/Src/main.c
index 27a2846..e7348ab 100644
--- a/sdcl-firmware/Core/Src/main.c
+++ b/sdcl-firmware/Core/Src/main.c
@@ -520,7 +520,7 @@ void HAL_CAN_RxFifo0MsgPendingCallback(CAN_HandleTypeDef *hcan) {
   }
   pHeartbeat = rxData.signals.heartbeat;
 
-  bool close_sdc = setup_done && rxData.signals.as_close_sdc;
+  bool close_sdc = setup_done && rxData.signals.as_close_sdc && WD_OK;
 
 #endif