1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index d94f92f88ca1..2a81d278bcf3 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -50,6 +50,7 @@ acpi-$(CONFIG_ACPI_REDUCED_HARDWARE_ONLY) += evged.o
 acpi-y                          += sysfs.o
 acpi-y                          += property.o
 acpi-$(CONFIG_X86)              += acpi_cmos_rtc.o
+acpi-$(CONFIG_X86)              += x86/utils.o
 acpi-$(CONFIG_DEBUG_FS)         += debugfs.o
 acpi-$(CONFIG_ACPI_NUMA)        += numa.o
 acpi-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o