diff --git a/os/rt/include/chschd.h b/os/rt/include/chschd.h
index 5d9829d57..25bd5d49b 100644
--- a/os/rt/include/chschd.h
+++ b/os/rt/include/chschd.h
@@ -180,7 +180,7 @@ struct ch_threads_list {
 /**
  * @brief   Generic threads bidirectional linked list header and element.
  */
-struct ch_threads_queue{
+struct ch_threads_queue {
   thread_t              *p_next;    /**< @brief Next in the list/queue.     */
   thread_t              *p_prev;    /**< @brief Previous in the queue.      */
 };
@@ -476,7 +476,7 @@ struct ch_system {
    */
   kernel_stats_t        kernel_stats;
 #endif
-#if CH_CFG_NO_IDLE_THREAD == FALSE
+#if (CH_CFG_NO_IDLE_THREAD == FALSE) || defined(__DOXYGEN__)
   /**
    * @brief   Idle thread working area.
    */