diff --git a/include/linux/mfd/max8998.h b/include/linux/mfd/max8998.h
index 6823548..7547118 100644
--- a/include/linux/mfd/max8998.h
+++ b/include/linux/mfd/max8998.h
@@ -100,7 +100,7 @@
 struct max8998_platform_data {
 	struct max8998_regulator_data	*regulators;
 	int				num_regulators;
-	int				irq_base;
+	unsigned int			irq_base;
 	int				ono;
 	bool				buck_voltage_lock;
 	int				buck1_voltage1;