diff --git a/include/espmissingincludes.h b/include/espmissingincludes.h
index 6ade6346..aa50fd9e 100644
--- a/include/espmissingincludes.h
+++ b/include/espmissingincludes.h
@@ -43,7 +43,7 @@ uint8 wifi_get_opmode(void);
 uint32 system_get_time();
 int rand(void);
 void ets_bzero(void *s, size_t n);
-void ets_delay_us(uint16_t ms);
+//void ets_delay_us(uint16_t ms);
 
 //Hack: this is defined in SDK 1.4.0 and undefined in 1.3.0. It's only used for this, the symbol itself
 //has no meaning here.