diff --git a/src/menu/views/rtc.c b/src/menu/views/rtc.c
index 1534d24a..80796998 100644
--- a/src/menu/views/rtc.c
+++ b/src/menu/views/rtc.c
@@ -127,7 +127,7 @@ static void process (menu_t *menu) {
             adjust_rtc_time( &rtc_tm, -1 );
         }
         else if (menu->actions.options) { // R button = save
-            if(rtc_is_persistent()) {
+            if( rtc_get_source() == RTC_SOURCE_JOYBUS && rtc_is_source_available( RTC_SOURCE_DD ) ) {
                 struct timeval new_time = { .tv_sec = mktime(&rtc_tm) };
                 int res = settimeofday(&new_time, NULL);