diff --git a/drivers/rtc/hctosys.c b/drivers/rtc/hctosys.c
index fb4251de7ce1..91fb5f3c1051 100644
--- a/drivers/rtc/hctosys.c
+++ b/drivers/rtc/hctosys.c
@@ -33,7 +33,7 @@ static int __init rtc_hctosys(void)
 
 	if (rtc == NULL) {
 		pr_info("%s: unable to open rtc device (%s)\n",
-			__FILE__, CONFIG_RTC_HCTOSYS_DEVICE);
+			__func__, CONFIG_RTC_HCTOSYS_DEVICE);
 		goto err_open;
 	}