diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 4619aa2ac469..789bddfea99d 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -15,7 +15,7 @@ rtc-core-$(CONFIG_RTC_INTF_DEV)		+= dev.o
 rtc-core-$(CONFIG_RTC_INTF_PROC)	+= proc.o
 rtc-core-$(CONFIG_RTC_INTF_SYSFS)	+= sysfs.o
 
-obj-$(CONFIG_RTC_LIB_KUNIT_TEST)	+= lib_test.o
+obj-$(CONFIG_RTC_LIB_KUNIT_TEST)	+= test_rtc_lib.o
 
 # Keep the list ordered.
 
diff --git a/drivers/rtc/lib_test.c b/drivers/rtc/test_rtc_lib.c
similarity index 100%
rename from drivers/rtc/lib_test.c
rename to drivers/rtc/test_rtc_lib.c