diff --git a/README.md b/README.md
index ebe16ad..ca70bd0 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@ This is a CDC/DFU/UF2 bootloader for nRF52 boards.
 - Particle Argon
 - Particle Boron
 - Particle Xenon
+- MakerDiary MDK nRF52840 USB Dongle
 
 UF2 is an easy-to-use bootloader that appears as a flash drive. You can just copy `.uf2`-format
 application images to the flash drive to load new firmware.