diff --git a/os/kernel/include/chschd.h b/os/kernel/include/chschd.h
index 9d58fb887..3c55d59a0 100644
--- a/os/kernel/include/chschd.h
+++ b/os/kernel/include/chschd.h
@@ -172,7 +172,7 @@ extern "C" {
  *          equal or higher priority, if any.
  */
 #if !defined(PORT_OPTIMIZED_DOYIELDS) || defined(__DOXYGEN__)
-#define chSchDoYieldS(void) {                                               \
+#define chSchDoYieldS() {                                                   \
   if (chSchCanYieldS())                                                     \
     chSchDoRescheduleI();                                                   \
 }