diff --git a/drivers/char/scx200_gpio.c b/drivers/char/scx200_gpio.c
index b956c7b..b1f88c6 100644
--- a/drivers/char/scx200_gpio.c
+++ b/drivers/char/scx200_gpio.c
@@ -69,7 +69,7 @@
 	.release = scx200_gpio_release,
 };
 
-struct cdev scx200_gpio_cdev;  /* use 1 cdev for all pins */
+static struct cdev scx200_gpio_cdev;  /* use 1 cdev for all pins */
 
 static int __init scx200_gpio_init(void)
 {