diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index 694ffa8..f74046c 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -456,7 +456,7 @@
 	return register_driver(&drv->drv);
 }
 
-void w1_found(struct w1_bus *bus, u64 rn)
+static void w1_found(struct w1_bus *bus, u64 rn)
 {
 	struct w1_device *dev;
 	u64 tmp = be64_to_cpu(rn);