diff --git a/tests/src/lib/Arduino.h b/tests/src/lib/Arduino.h
index 9bb814e..2a00f24 100644
--- a/tests/src/lib/Arduino.h
+++ b/tests/src/lib/Arduino.h
@@ -21,4 +21,6 @@ extern "C"{
 #define PROGMEM
 #define pgm_read_byte_near(x) *(x)
 
+#define yield(x) {}
+
 #endif // Arduino_h