diff --git a/drivers/random/Makefile b/drivers/random/Makefile
index bb6ba03b6b6..b4c6f16d5df 100644
--- a/drivers/random/Makefile
+++ b/drivers/random/Makefile
@@ -1,4 +1,5 @@
 ccflags-y +=-I$(srctree)/arch/$(ARCH)
+ccflags-y +=-I$(srctree)/arch/$(ARCH)/$(strip $(CONFIG_BSP_DIR))
 
 obj-$(CONFIG_TIMER_RANDOM_GENERATOR) = rand32-timer.o
 obj-$(CONFIG_X86_TSC_RANDOM_GENERATOR) += rand32-timestamp.o