diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index a8a5c29..dc36a44 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -12,6 +12,8 @@
 #include <linux/rwsem.h>
 #include <linux/acpi.h>
 
+#include "internal.h"
+
 #define ACPI_GLUE_DEBUG	0
 #if ACPI_GLUE_DEBUG
 #define DBG(x...) printk(PREFIX x)