1 files changed, 3 insertions, 1 deletions
diff --git a/os/nil/src/nil.c b/os/nil/src/nil.c
index 48f640b09..e79fdca27 100644
--- a/os/nil/src/nil.c
+++ b/os/nil/src/nil.c
@@ -21,7 +21,7 @@
  * @file    nil.c
  * @brief   Nil RTOS main source file.
  *
- * @defgroup nil
+ * @defgroup NIL API
  * @details Nil RTOS services.
  * @{
  */
@@ -118,6 +118,8 @@ void chSysInit(void) {
  *          in debug mode.
  * @note    Can be invoked from any system state.
  *
+ * @param[in] reason        pointer to an error string
+ *
  * @special
  */
 void chSysHalt(const char *reason) {