diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index d5a55bdb9c3cca13bc4c66e01da0b440341f0781..b123cc08773d30fccf89c1d0a0aa4e79fcaa2512 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -25,6 +25,8 @@
 #ifndef _LINUX_ACPI_H
 #define _LINUX_ACPI_H
 
+#include <linux/config.h>
+
 #ifdef	CONFIG_ACPI
 
 #ifndef _LINUX