diff --git a/arch/sandbox/lib/Makefile b/arch/sandbox/lib/Makefile
index 4c1a38d..75b135c 100644
--- a/arch/sandbox/lib/Makefile
+++ b/arch/sandbox/lib/Makefile
@@ -7,5 +7,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-
 obj-y	+= interrupts.o
+obj-$(CONFIG_PCI)	+= pci_io.o