diff --git a/examples/device/cdc_dual_ports/src/main.c b/examples/device/cdc_dual_ports/src/main.c
index c50985276..8fe003f21 100644
--- a/examples/device/cdc_dual_ports/src/main.c
+++ b/examples/device/cdc_dual_ports/src/main.c
@@ -139,9 +139,7 @@ void tud_cdc_line_state_cb(uint8_t instance, bool dtr, bool rts) {
       cdc_line_coding_t coding;
       tud_cdc_get_line_coding(&coding);
       if (coding.bit_rate == 1200) {
-        if (board_reset_to_bootloader) {
-          board_reset_to_bootloader();
-        }
+        board_reset_to_bootloader();
       }
     }
   }
diff --git a/hw/bsp/board.c b/hw/bsp/board.c
index 59a774789..e141664da 100644
--- a/hw/bsp/board.c
+++ b/hw/bsp/board.c
@@ -156,6 +156,10 @@ TU_ATTR_WEAK void board_init_after_tusb(void) {
   // nothing to do
 }
 
+TU_ATTR_WEAK void board_reset_to_bootloader(void) {
+  // not implemented
+}
+
 //--------------------------------------------------------------------+
 // Board API
 //--------------------------------------------------------------------+