diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index 41319a2e409b459d553cc6add16218eea75c1cca..fc6c90b57be0afd9f5441425378747635c430a61 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -87,7 +87,6 @@ struct rtc_class_ops {
 	int (*set_offset)(struct device *, long offset);
 };
 
-#define RTC_DEVICE_NAME_SIZE 20
 typedef struct rtc_task {
 	void (*func)(void *private_data);
 	void *private_data;