diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index d347c805f923..f540b1496e2f 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -35,6 +35,8 @@
 #ifndef __LINUX_REGULATOR_CONSUMER_H_
 #define __LINUX_REGULATOR_CONSUMER_H_
 
+#include <linux/err.h>
+
 struct device;
 struct notifier_block;
 struct regmap;