diff --git a/boards.txt b/boards.txt
index d070048fb..fbdce1ba8 100644
--- a/boards.txt
+++ b/boards.txt
@@ -6,6 +6,8 @@ esp01.upload.speed=115200
 esp01.upload.resetmethod=none
 esp01.upload.maximum_size=524288
 esp01.upload.wait_for_upload_port=true
+esp01.serial.disableDTR=true
+esp01.serial.disableRTS=true
 
 esp01.build.mcu=esp8266
 esp01.build.f_cpu=80000000L