diff --git a/repositories.txt b/repositories.txt
index acf67f3b..e95c9c68 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -1532,6 +1532,7 @@ https://github.com/GordonRudman/ExampleArduinoLibrary
 https://github.com/gordonthree/pca9633
 https://github.com/gpb01/NVSRAM
 https://github.com/gpb01/SerialCmd
+https://github.com/gpb01/wdt_samd21
 https://github.com/gq97a6/IoT_Modules-Buttons
 https://github.com/gramedek/pio8255
 https://github.com/grandeurtech/arduino-sdk