diff --git a/firmware/chibios/os/kernel/src/chsys.c b/firmware/chibios/os/kernel/src/chsys.c
index f26218d6..2bc3110a 100755
--- a/firmware/chibios/os/kernel/src/chsys.c
+++ b/firmware/chibios/os/kernel/src/chsys.c
@@ -119,7 +119,7 @@ void chSysInit(void) {
      serve interrupts in its context while keeping the lowest energy saving
      mode compatible with the system status.*/
   chThdCreateStatic(_idle_thread_wa, sizeof(_idle_thread_wa), IDLEPRIO,
-                    (tfunc_t)_idle_thread, NULL);
+                    (void *)_idle_thread, NULL);
 #endif
 }