diff --git a/os/hal/ports/WB32/LLD/UARTv1/driver.mk b/os/hal/ports/WB32/LLD/UARTv1/driver.mk
index d06d4a81..b82a29b4 100644
--- a/os/hal/ports/WB32/LLD/UARTv1/driver.mk
+++ b/os/hal/ports/WB32/LLD/UARTv1/driver.mk
@@ -1,9 +1,13 @@
 ifeq ($(USE_SMART_BUILD),yes)
+ifneq ($(findstring HAL_USE_SERIAL TRUE,$(HALCONF)),)
+PLATFORMSRC += $(CHIBIOS_CONTRIB)/os/hal/ports/WB32/LLD/UARTv1/hal_serial_lld.c
+endif
 ifneq ($(findstring HAL_USE_UART TRUE,$(HALCONF)),)
-PLATFORMSRC_CONTRIB += $(CHIBIOS_CONTRIB)/os/hal/ports/WB32/LLD/UARTv1/hal_uart_lld.c
+PLATFORMSRC += $(CHIBIOS_CONTRIB)/os/hal/ports/WB32/LLD/UARTv1/hal_uart_lld.c
 endif
 else
-PLATFORMSRC_CONTRIB += $(CHIBIOS_CONTRIB)/os/hal/ports/WB32/LLD/UARTv1/hal_uart_lld.c
+PLATFORMSRC += $(CHIBIOS_CONTRIB)/os/hal/ports/WB32/LLD/UARTv1/hal_serial_lld.c
+PLATFORMSRC += $(CHIBIOS_CONTRIB)/os/hal/ports/WB32/LLD/UARTv1/hal_uart_lld.c
 endif
 
 PLATFORMINC_CONTRIB += $(CHIBIOS_CONTRIB)/os/hal/ports/WB32/LLD/UARTv1