diff --git a/cores/arduino/zephyrCommon.cpp b/cores/arduino/zephyrCommon.cpp
index a9c053b..7e47fcc 100644
--- a/cores/arduino/zephyrCommon.cpp
+++ b/cores/arduino/zephyrCommon.cpp
@@ -6,6 +6,9 @@
#include "Arduino.h"
+void yield(void) {}
+//empty
+
/*
* The ACTIVE_HIGH flag is set so that A low physical
* level on the pin will be interpreted as value 0.
Fix is to just: