diff --git a/demos/STM32/RT-STM32F401RE-NUCLEO/main.c b/demos/STM32/RT-STM32F401RE-NUCLEO/main.c
index bd50f191d..4feec8e77 100644
--- a/demos/STM32/RT-STM32F401RE-NUCLEO/main.c
+++ b/demos/STM32/RT-STM32F401RE-NUCLEO/main.c
@@ -19,7 +19,7 @@
 #include "test.h"
 
 /*
- * Red LED blinker thread, times are in milliseconds.
+ * LED blinker thread, times are in milliseconds.
  */
 static THD_WORKING_AREA(waThread1, 128);
 static THD_FUNCTION(Thread1, arg) {
diff --git a/readme.txt b/readme.txt
index 47acd4ddf..551c58aab 100644
--- a/readme.txt
+++ b/readme.txt
@@ -76,6 +76,7 @@
 *** 3.0.0p5 ***
 - HAL: Added DAC support to all STM32 sub-platforms, added another demo for
        the STM32F3xx.
+- DEM: Fixed wrong comment in ARMCM4-STM32F401RE-NUCLEO demo (bug #595).
 - HAL: Fixed STM32 SDC LLD driver initialization with Asserts disabled
        (bug #594).