diff --git a/os/hal/platforms/STM32F4xx/hal_lld.h b/os/hal/platforms/STM32F4xx/hal_lld.h
index c97ce41fa..ad2eb9633 100644
--- a/os/hal/platforms/STM32F4xx/hal_lld.h
+++ b/os/hal/platforms/STM32F4xx/hal_lld.h
@@ -1297,16 +1297,6 @@
 #error "invalid STM32_RTCSEL value specified"
 #endif
 
-/**
- * @brief   RTC HSE divider setting.
- */
-#if ((STM32_RTCPRE_VALUE >= 2) && (STM32_RTCPRE_VALUE <= 31)) ||            \
-    defined(__DOXYGEN__)
-#define STM32_RTCPRE                (STM32_RTCPRE_VALUE << 16)
-#else
-#error "invalid STM32_RTCPRE value specified"
-#endif
-
 /**
  * @brief   48MHz frequency.
  */
diff --git a/readme.txt b/readme.txt
index c25d3ad54..caa0adf28 100644
--- a/readme.txt
+++ b/readme.txt
@@ -79,6 +79,7 @@
 *****************************************************************************
 
 *** 2.4.4 ***
+- FIX: Fixed duplicated code in hal_lld.h (STM32F4xx) (bug 3602544).
 - FIX: Fixed compile errors in Posix-GCC demo (bug 3601621).
 - FIX: Fixed state checker error in MSP430 port (bug 3601460).
 - FIX: Fixed wrong assertion in UART driver (bug 3600789).