diff --git a/Tools/AP_Periph/README.md b/Tools/AP_Periph/README.md
index 11d198b467..67aba113d9 100644
--- a/Tools/AP_Periph/README.md
+++ b/Tools/AP_Periph/README.md
@@ -33,7 +33,7 @@ DroneCAN sensor types. Support is included for:
  - Barometers (SPI or I2C)
  - Airspeed sensors (I2C)
  - Rangefinders (UART or I2C)
- - ADSB (Ping ADSB receiver on UART)
+ - ADSB (uAvionix compatible Ping ADSB receiver on UART)
  - Battery Monitor (Analog, I2C/SMBus, UART)
  - LEDs (GPIO, I2C or WS2812 serial)
  - Safety LED and Safety Switch