diff --git a/drivers/atm/adummy.c b/drivers/atm/adummy.c
index 1fd25e872ece44b9a591eb3225e15f2ec3b0178f..da27ddfa75a7fd0bb9eebe0029079f51a5182b7b 100644
--- a/drivers/atm/adummy.c
+++ b/drivers/atm/adummy.c
@@ -71,7 +71,7 @@ static struct attribute *adummy_attrs[] = {
 	NULL
 };
 
-static struct attribute_group adummy_group_attrs = {
+static const struct attribute_group adummy_group_attrs = {
 	.name = NULL, /* We want them in dev's root folder */
 	.attrs = adummy_attrs
 };