diff --git a/libraries/AP_HAL/AP_HAL_Boards.h b/libraries/AP_HAL/AP_HAL_Boards.h
index 9d140044b4..3484872c4d 100644
--- a/libraries/AP_HAL/AP_HAL_Boards.h
+++ b/libraries/AP_HAL/AP_HAL_Boards.h
@@ -226,3 +226,9 @@
 #ifndef HAL_HAVE_DUAL_USB_CDC
 #define HAL_HAVE_DUAL_USB_CDC 0
 #endif
+
+#if HAL_WITH_UAVCAN && !HAL_MINIMIZE_FEATURES && CONFIG_HAL_BOARD == HAL_BOARD_CHIBIOS
+#define AP_UAVCAN_SLCAN_ENABLED 1
+#else
+#define AP_UAVCAN_SLCAN_ENABLED 0
+#endif