diff --git a/registry.txt b/registry.txt
index f1c893ee..c896e195 100644
--- a/registry.txt
+++ b/registry.txt
@@ -6632,3 +6632,4 @@ https://github.com/RobTillaart/DS2401.git|Contributed|DS2401
 https://github.com/martinvichnal/AntiDelay.git|Contributed|AntiDelay
 https://github.com/karol-brejna-i/RemoteDebug.git|Contributed|RemoteDebug2
 https://github.com/thelastoutpostworkshop/gpio_viewer.git|Contributed|GPIOViewer
+https://github.com/firefly-cpp/TCXWriter.git|Contributed|TCXWriter