diff --git a/os/hal/platforms/STM32F1xx/hal_lld.c b/os/hal/platforms/STM32F1xx/hal_lld.c
index e50984013..d168ad603 100644
--- a/os/hal/platforms/STM32F1xx/hal_lld.c
+++ b/os/hal/platforms/STM32F1xx/hal_lld.c
@@ -58,6 +58,7 @@ static void hal_lld_backup_domain_init(void) {
   /* Backup domain access enabled and left open.*/
   PWR->CR |= PWR_CR_DBP;
 
+#if HAL_USE_RTC
   /* Reset BKP domain if different clock source selected.*/
   if ((RCC->BDCR & STM32_RTCSEL_MASK) != STM32_RTCSEL){
     /* Backup domain reset.*/
@@ -70,7 +71,7 @@ static void hal_lld_backup_domain_init(void) {
   RCC->BDCR |= RCC_BDCR_LSEON;
   while ((RCC->BDCR & RCC_BDCR_LSERDY) == 0)
     ;                                     /* Waits until LSE is stable.   */
-#endif
+#endif /* STM32_LSE_ENABLED */
 
 #if STM32_RTCSEL != STM32_RTCSEL_NOCLOCK
   /* If the backup domain hasn't been initialized yet then proceed with
@@ -83,11 +84,10 @@ static void hal_lld_backup_domain_init(void) {
     RCC->BDCR |= RCC_BDCR_RTCEN;
 
     /* Prescaler value loaded in registers.*/
-#if HAL_USE_RTC
     rtc_lld_set_prescaler();
-#endif /* HAL_USE_RTC */
   }
 #endif /* STM32_RTCSEL != STM32_RTCSEL_NOCLOCK */
+#endif /* HAL_USE_RTC */
 }
 
 /*===========================================================================*/
diff --git a/readme.txt b/readme.txt
index 92e0989ea..cd6c19e95 100644
--- a/readme.txt
+++ b/readme.txt
@@ -79,9 +79,10 @@
 *****************************************************************************
 
 *** 2.4.3 ***
-- FIX: Compilation issue with HAL_USE_RTC disabled (bug 3594083)
-- FIX: Wasting of BKP registers in RTCv1 driver (bug 3594005)
-- FIX: Potential problem with RTC_CRL_RSF bit (bug 3593972)
+- FIX: Unneded RTC initialization when HAL_USE_RTC disabled (bug 3594620).
+- FIX: Compilation issue with HAL_USE_RTC disabled (bug 3594083).
+- FIX: Wasting of BKP registers in RTCv1 driver (bug 3594005).
+- FIX: Potential problem with RTC_CRL_RSF bit (bug 3593972).
 - FIX: Fixed wrong stack initializations in GCC STM32L1xx port files (bug
   3591321).
 - FIX: Fixed different redefinition for __main_stack_end__ symbol (bug