diff --git a/Marlin/nozzle.h b/Marlin/nozzle.h
index f98bc40dba..6b3b4a1a23 100644
--- a/Marlin/nozzle.h
+++ b/Marlin/nozzle.h
@@ -1,4 +1,4 @@
-/*
+/**
  * Marlin 3D Printer Firmware
  * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
diff --git a/Marlin/printcounter.cpp b/Marlin/printcounter.cpp
index b91b850b9d..469a7332d7 100644
--- a/Marlin/printcounter.cpp
+++ b/Marlin/printcounter.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * Marlin 3D Printer Firmware
  * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
diff --git a/Marlin/printcounter.h b/Marlin/printcounter.h
index 0e9d06f45e..ffa5808006 100644
--- a/Marlin/printcounter.h
+++ b/Marlin/printcounter.h
@@ -1,4 +1,4 @@
-/*
+/**
  * Marlin 3D Printer Firmware
  * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
diff --git a/Marlin/stopwatch.cpp b/Marlin/stopwatch.cpp
index ef701a11b1..5958000f72 100644
--- a/Marlin/stopwatch.cpp
+++ b/Marlin/stopwatch.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * Marlin 3D Printer Firmware
  * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
diff --git a/Marlin/stopwatch.h b/Marlin/stopwatch.h
index 709482884a..735983891c 100644
--- a/Marlin/stopwatch.h
+++ b/Marlin/stopwatch.h
@@ -1,4 +1,4 @@
-/*
+/**
  * Marlin 3D Printer Firmware
  * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
diff --git a/Marlin/twibus.cpp b/Marlin/twibus.cpp
index b621be9524..c59e79dc9f 100644
--- a/Marlin/twibus.cpp
+++ b/Marlin/twibus.cpp
@@ -1,4 +1,4 @@
-/*
+/**
  * Marlin 3D Printer Firmware
  * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
diff --git a/Marlin/twibus.h b/Marlin/twibus.h
index dd1cc12673..3b606571cf 100644
--- a/Marlin/twibus.h
+++ b/Marlin/twibus.h
@@ -1,4 +1,4 @@
-/*
+/**
  * Marlin 3D Printer Firmware
  * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *