diff --git a/boards/nucleo-f401/Makefile.features b/boards/nucleo-f401/Makefile.features
index 40fed70faa..5a6a4e7cae 100644
--- a/boards/nucleo-f401/Makefile.features
+++ b/boards/nucleo-f401/Makefile.features
@@ -1,7 +1,12 @@
-FEATURES_PROVIDED += cpp
-FEATURES_PROVIDED += periph_uart
+# Put defined MCU peripherals here (in alphabetical order)
+FEATURES_PROVIDED += periph_cpuid
 FEATURES_PROVIDED += periph_gpio
 FEATURES_PROVIDED += periph_spi
-FEATURES_PROVIDED += periph_cpuid
 FEATURES_PROVIDED += periph_timer
+FEATURES_PROVIDED += periph_uart
+
+# Various other features (if any)
+FEATURES_PROVIDED += cpp
+
+# The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m4_2