diff --git a/drivers/hwmon/jz4740-hwmon.c b/drivers/hwmon/jz4740-hwmon.c
index 40f106d..fea292d 100644
--- a/drivers/hwmon/jz4740-hwmon.c
+++ b/drivers/hwmon/jz4740-hwmon.c
@@ -32,7 +32,7 @@
 
 	int irq;
 
-	struct mfd_cell *cell;
+	const struct mfd_cell *cell;
 	struct device *hwmon;
 
 	struct completion read_completion;