diff --git a/include/linux/dmi.h b/include/linux/dmi.h
index f820f0a..2f9f988 100644
--- a/include/linux/dmi.h
+++ b/include/linux/dmi.h
@@ -2,6 +2,7 @@
 #define __DMI_H__
 
 #include <linux/list.h>
+#include <linux/kobject.h>
 #include <linux/mod_devicetable.h>
 
 /* enum dmi_field is in mod_devicetable.h */
@@ -93,6 +94,7 @@
 	int devfn;
 };
 
+extern struct kobject *dmi_kobj;
 extern int dmi_check_system(const struct dmi_system_id *list);
 const struct dmi_system_id *dmi_first_match(const struct dmi_system_id *list);
 extern const char * dmi_get_system_info(int field);