diff --git a/firmware/components/CAN/CAN-B/Src/can.c b/firmware/components/CAN/CAN-B/Src/can.c
index 7d2fd349..e316226f 100644
--- a/firmware/components/CAN/CAN-B/Src/can.c
+++ b/firmware/components/CAN/CAN-B/Src/can.c
@@ -56,7 +56,7 @@ void MX_CAN_Init(void)
   /* USER CODE BEGIN CAN_Init 2 */
   CAN_FilterTypeDef canfilterconf;
   canfilterconf.FilterActivation = CAN_FILTER_ENABLE;
-  canfilterconf.FilterBank = 18;
+  canfilterconf.FilterBank = 18; // The STM32F103 has 14 CAN Filter Banks: Use values 0-13. [CHANGE ME]
   canfilterconf.FilterFIFOAssignment = CAN_FILTER_FIFO1;
   canfilterconf.FilterIdHigh = 0x399 << 5;
   canfilterconf.FilterIdLow = 0x0000;