diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index b6d3072dce5a..9620abb2a6dc 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -282,7 +282,7 @@ irqreturn_t rtc_interrupt(int irq, void *dev_id)
  */
 static ctl_table rtc_table[] = {
 	{
-		.ctl_name	= 1,
+		.ctl_name	= CTL_UNNUMBERED,
 		.procname	= "max-user-freq",
 		.data		= &rtc_max_user_freq,
 		.maxlen		= sizeof(int),
@@ -294,9 +294,8 @@ static ctl_table rtc_table[] = {
 
 static ctl_table rtc_root[] = {
 	{
-		.ctl_name	= 1,
+		.ctl_name	= CTL_UNNUMBERED,
 		.procname	= "rtc",
-		.maxlen		= 0,
 		.mode		= 0555,
 		.child		= rtc_table,
 	},
@@ -307,7 +306,6 @@ static ctl_table dev_root[] = {
 	{
 		.ctl_name	= CTL_DEV,
 		.procname	= "dev",
-		.maxlen		= 0,
 		.mode		= 0555,
 		.child		= rtc_root,
 	},