diff --git a/arch/x86/cpu/broadwell/Makefile b/arch/x86/cpu/broadwell/Makefile
index a542fef..5a62afa 100644
--- a/arch/x86/cpu/broadwell/Makefile
+++ b/arch/x86/cpu/broadwell/Makefile
@@ -10,5 +10,6 @@
 obj-y += northbridge.o
 obj-y += pch.o
 obj-y += pinctrl_broadwell.o
+obj-y += power_state.o
 obj-y += refcode.o
 obj-y += sata.o