diff --git a/variants/lilygo_techo_lite/platformio.ini b/variants/lilygo_techo_lite/platformio.ini
index 2a92eb9be2d..234084265b5 100644
--- a/variants/lilygo_techo_lite/platformio.ini
+++ b/variants/lilygo_techo_lite/platformio.ini
@@ -116,6 +116,7 @@ build_flags =
   -D UI_RECENT_LIST_SIZE=9
   -D UI_SENSORS_PAGE=1
   -D AUTO_SHUTDOWN_MILLIVOLTS=3300
+  -D ENABLE_USB_INTERFACE
 ;  -D QSPIFLASH=1
 build_src_filter = ${LilyGo_T-Echo-Lite.build_src_filter}
   +<../examples/companion_radio/*.cpp>