diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index 8511c068a6108d24c02310dd1b6437d3f2203339..30d09d17717179005ecd37202d20ce2f2ea93790 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -1059,15 +1059,15 @@ static struct attribute *ab9540_sysfs_entries[] = {
 	NULL,
 };
 
-static struct attribute_group ab8500_attr_group = {
+static const struct attribute_group ab8500_attr_group = {
 	.attrs	= ab8500_sysfs_entries,
 };
 
-static struct attribute_group ab8505_attr_group = {
+static const struct attribute_group ab8505_attr_group = {
 	.attrs	= ab8505_sysfs_entries,
 };
 
-static struct attribute_group ab9540_attr_group = {
+static const struct attribute_group ab9540_attr_group = {
 	.attrs	= ab9540_sysfs_entries,
 };