diff --git a/drivers/media/radio/si4713/radio-usb-si4713.c b/drivers/media/radio/si4713/radio-usb-si4713.c
index d97884494d04..f1e640d71188 100644
--- a/drivers/media/radio/si4713/radio-usb-si4713.c
+++ b/drivers/media/radio/si4713/radio-usb-si4713.c
@@ -415,7 +415,7 @@ static struct i2c_adapter si4713_i2c_adapter_template = {
 	.algo   = &si4713_algo,
 };
 
-int si4713_register_i2c_adapter(struct si4713_usb_device *radio)
+static int si4713_register_i2c_adapter(struct si4713_usb_device *radio)
 {
 	radio->i2c_adapter = si4713_i2c_adapter_template;
 	/* set up sysfs linkage to our parent device */