diff --git a/include/linux/scx200_gpio.h b/include/linux/scx200_gpio.h
index 90dd069..1a82d30 100644
--- a/include/linux/scx200_gpio.h
+++ b/include/linux/scx200_gpio.h
@@ -4,6 +4,7 @@
 
 extern unsigned scx200_gpio_base;
 extern long scx200_gpio_shadow[2];
+extern struct nsc_gpio_ops scx200_gpio_ops;
 
 #define scx200_gpio_present() (scx200_gpio_base!=0)