diff --git a/board/engicam/stm32mp1/Makefile b/board/engicam/stm32mp1/Makefile
index 65560df..155d33f 100644
--- a/board/engicam/stm32mp1/Makefile
+++ b/board/engicam/stm32mp1/Makefile
@@ -8,3 +8,5 @@
 else
 obj-y += stm32mp1.o
 endif
+
+obj-$(CONFIG_DEBUG_UART_BOARD_INIT) += ../../st/stm32mp1/debug_uart.o