diff --git a/platformio.ini b/platformio.ini
index be779b28..94564062 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -167,8 +167,7 @@ extends = esp32s3_common
 [env:TTGO_T7S3]
 extends = esp32s3_common
 build_flags = 
-  ${common.build_flags}
-  -D MAIN_HW_EN_PIN=3          # enable the main hardware pin (main sensor)
+  ${esp32s3_common.build_flags}
   -D ARDUINO_USB_CDC_ON_BOOT=1
 
 [env:LORADEVKIT]