diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 9d65047..8a1894a 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -334,7 +334,7 @@
 int acpi_processor_hotplug(struct acpi_processor *pr);
 int acpi_processor_power_exit(struct acpi_processor *pr,
 			      struct acpi_device *device);
-int acpi_processor_suspend(struct acpi_device * device, pm_message_t state);
+int acpi_processor_suspend(struct acpi_device * device);
 int acpi_processor_resume(struct acpi_device * device);
 extern struct cpuidle_driver acpi_idle_driver;