diff --git a/arch/x86/cpu/quark/Makefile b/arch/x86/cpu/quark/Makefile
index 8f1d018..6d670d7 100644
--- a/arch/x86/cpu/quark/Makefile
+++ b/arch/x86/cpu/quark/Makefile
@@ -4,5 +4,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-y += car.o dram.o msg_port.o quark.o
+obj-y += car.o dram.o irq.o msg_port.o quark.o
 obj-y += mrc.o mrc_util.o hte.o smc.o