diff --git a/ref_app/src/mcal_led/mcal_led_console.h b/ref_app/src/mcal_led/mcal_led_console.h
index 9f6b00d7d..ab75469b8 100644
--- a/ref_app/src/mcal_led/mcal_led_console.h
+++ b/ref_app/src/mcal_led/mcal_led_console.h
@@ -8,11 +8,11 @@
 #ifndef MCAL_LED_CONSOLE_2020_04_23_H
   #define MCAL_LED_CONSOLE_2020_04_23_H
 
+  #include <mcal_led/mcal_led_boolean_state_base.h>
+
   #include <cstdint>
   #include <iostream>
 
-  #include <mcal_led/mcal_led_boolean_state_base.h>
-
   namespace mcal { namespace led {
 
   class led_console final : public mcal::led::led_boolean_state_base // NOLINT(cppcoreguidelines-special-member-functions,hicpp-special-member-functions)
diff --git a/ref_app/src/mcal_led/mcal_led_rgb_base.h b/ref_app/src/mcal_led/mcal_led_rgb_base.h
index 98e26d2b5..9f7a3cff3 100644
--- a/ref_app/src/mcal_led/mcal_led_rgb_base.h
+++ b/ref_app/src/mcal_led/mcal_led_rgb_base.h
@@ -8,10 +8,10 @@
 #ifndef MCAL_LED_RGB_BASE_2023_07_12_H
   #define MCAL_LED_RGB_BASE_2023_07_12_H
 
-  #include <cstdint>
-
   #include <mcal_led/mcal_led_boolean_state_base.h>
 
+  #include <cstdint>
+
   namespace mcal { namespace led {
 
   class led_rgb_base : public mcal::led::led_boolean_state_base