diff --git a/include/linux/dmi.h b/include/linux/dmi.h
index 2e6bbe0..64fd6c3 100644
--- a/include/linux/dmi.h
+++ b/include/linux/dmi.h
@@ -68,6 +68,7 @@
 extern struct dmi_device * dmi_find_device(int type, const char *name,
 	struct dmi_device *from);
 extern void dmi_scan_machine(void);
+extern int dmi_get_year(int field);
 
 #else
 
@@ -75,6 +76,7 @@
 static inline char * dmi_get_system_info(int field) { return NULL; }
 static inline struct dmi_device * dmi_find_device(int type, const char *name,
 	struct dmi_device *from) { return NULL; }
+static inline int dmi_get_year(int year) { return 0; }
 
 #endif