diff --git a/rtl-sdr.rules b/rtl-sdr.rules
index 299ec7d..e9eded9 100644
--- a/rtl-sdr.rules
+++ b/rtl-sdr.rules
@@ -26,3 +26,6 @@ SUBSYSTEMS=="usb", ATTRS{idVendor}=="0ccd", ATTRS{idProduct}=="00b3", MODE:="066
 
 # GTek T803
 SUBSYSTEMS=="usb", ATTRS{idVendor}=="1f4d", ATTRS{idProduct}=="b803", MODE:="0666"
+
+# Twintech UT-40
+SUBSYSTEMS=="usb", ATTRS{idVendor}=="1b80", ATTRS{idProduct}=="d3a4", MODE:="0666"