diff --git a/include/libopencm3/lm4f/gpio.h b/include/libopencm3/lm4f/gpio.h
index d19bbdb3..92bc0b41 100644
--- a/include/libopencm3/lm4f/gpio.h
+++ b/include/libopencm3/lm4f/gpio.h
@@ -1,17 +1,17 @@
/** @defgroup gpio_defines General Purpose I/O Defines
-
-@brief Defined Constants and Types for the LM4F General Purpose I/O
-
-@ingroup LM4Fxx_defines
-
-@version 1.0.0
-
-@author @htmlonly © @endhtmlonly 2011 Gareth McMullin
-
-@date 10 March 2013
-
-LGPL License Terms @ref lgpl_license
-*/
+ *
+ * @brief Defined Constants and Types for the LM4F General Purpose I/O
+ *
+ * @ingroup LM4Fxx_defines
+ *
+ * @version 1.0.0
+ *
+ * @author @htmlonly © @endhtmlonly 2011 Gareth McMullin
+ *
+ * @date 10 March 2013
+ *
+ * LGPL License Terms @ref lgpl_license
+ */
/*
* This file is part of the libopencm3 project.
diff --git a/lib/lm4f/gpio.c b/lib/lm4f/gpio.c
index 95a86ef6..49a81efc 100644
--- a/lib/lm4f/gpio.c
+++ b/lib/lm4f/gpio.c
@@ -1,17 +1,17 @@
/** @defgroup gpio_file General Purpose I/O
-
-@brief LM4F General Purpose I/O
-
-@ingroup LM4Fxx
-
-@version 1.0.0
-
-@author @htmlonly © @endhtmlonly 2011 Gareth McMullin
-
-@date 10 March 2013
-
-LGPL License Terms @ref lgpl_license
-*/
+ *
+ * @brief LM4F General Purpose I/O
+ *
+ * @ingroup LM4Fxx
+ *
+ * @version 1.0.0
+ *
+ * @author @htmlonly © @endhtmlonly 2011 Gareth McMullin
+ *
+ * @date 10 March 2013
+ *
+ * LGPL License Terms @ref lgpl_license
+ */
/*
* This file is part of the libopencm3 project.