diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index 5353cbd75126..afb1cc4606c5 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -167,7 +167,7 @@ static struct w1_family w1_default_family = {
 
 static int w1_uevent(const struct device *dev, struct kobj_uevent_env *env);
 
-static struct bus_type w1_bus_type = {
+static const struct bus_type w1_bus_type = {
 	.name = "w1",
 	.uevent = w1_uevent,
 };