diff --git a/os/rt/include/chschd.h b/os/rt/include/chschd.h
index b3d6449ea..34fedf606 100644
--- a/os/rt/include/chschd.h
+++ b/os/rt/include/chschd.h
@@ -738,7 +738,7 @@ static inline thread_t *chSchSelectFirstI(void) {
   }
 
   /* Placing in ready list ahead of peers.*/
-  chSchReadyAheadI(otp);
+  (void) chSchReadyAheadI(otp);
 
   return ntp;
 }