diff --git a/platformio.ini b/platformio.ini
index 5baf974d..c3cf2fc4 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -407,7 +407,7 @@ build_flags = ${common.build_flags_esp8266} -D USE_WS2801
 board = esp32dev
 platform = espressif32@2.0
 build_unflags = ${common.build_unflags}
-build_flags = ${common.build_flags_esp32} -D LEDPIN=16 
+build_flags = ${common.build_flags_esp32} -D LEDPIN=16 -D RLYPIN=19
 lib_ignore =
   ESPAsyncTCP
   ESPAsyncUDP