diff --git a/src/drivers/boards/px4fmu-v4/CMakeLists.txt b/src/drivers/boards/px4fmu-v4/CMakeLists.txt
index cdf547f16c..13f3fb9c48 100644
--- a/src/drivers/boards/px4fmu-v4/CMakeLists.txt
+++ b/src/drivers/boards/px4fmu-v4/CMakeLists.txt
@@ -35,6 +35,7 @@ px4_add_module(
 	COMPILE_FLAGS
 	SRCS
 		../common/stm32/board_reset.c
+		../common/stm32/board_identity.c
 		../common/board_crashdump.c
 		../common/board_dma_alloc.c
 		px4fmu_can.c