diff --git a/platformio.ini b/platformio.ini
index fb7d07c4..0c4b7a1b 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -511,7 +511,7 @@ upload_speed = 921600
 custom_usermods = audioreactive
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} ${esp32.build_flags} -D WLED_RELEASE_NAME=\"ESP32_Ethernet\" -D RLYPIN=-1 -D WLED_USE_ETHERNET -D BTNPIN=-1
-  -D SR_DTYPE=-1 ;; force AR to not allocate any PINs at startup
+  -D SR_DMTYPE=-1 ;; force AR to not allocate any PINs at startup
   -D DATA_PINS=4 ;; default led pin = 16 conflicts with pins used for ethernet
   ; -D WLED_DISABLE_ESPNOW ;; ESP-NOW requires wifi, may crash with ethernet only => uncomment if your board uses ETH_CLOCK_GPIO0_OUT, ETH_CLOCK_GPIO16_OUT, ETH_CLOCK_GPIO17_OUT
   -DARDUINO_USB_CDC_ON_BOOT=0 ;; this flag is mandatory for "classic ESP32" when building with arduino-esp32 >=2.0.3