diff --git a/repositories.txt b/repositories.txt
index 0c8e6da5..83297487 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -1784,6 +1784,7 @@ https://github.com/janelia-arduino/PrintCppVersion
 https://github.com/janelia-arduino/Streaming
 https://github.com/janelia-arduino/TLE72X
 https://github.com/janelia-arduino/TMC2130
+https://github.com/janelia-arduino/TMC2209
 https://github.com/janelia-arduino/TMC429
 https://github.com/janelia-arduino/Vector
 https://github.com/janelia-arduino/Watchdog