diff --git a/os/kernel/src/chsem.c b/os/kernel/src/chsem.c
index 2dc7ee354..c9e429beb 100644
--- a/os/kernel/src/chsem.c
+++ b/os/kernel/src/chsem.c
@@ -340,7 +340,7 @@ void chSemAddCounterI(Semaphore *sp, cnt_t n) {
   }
 }
 
-#if CH_USE_SEMSW
+#if CH_USE_SEMSW || defined(__DOXYGEN__)
 /**
  * @brief   Performs atomic signal and wait operations on two semaphores.
  * @pre     The configuration option @p CH_USE_SEMSW must be enabled in order