diff --git a/registry.txt b/registry.txt
index 7b34a559..c0928085 100644
--- a/registry.txt
+++ b/registry.txt
@@ -8203,3 +8203,4 @@ https://github.com/X-croot/UltraSonicXCR.git|Contributed|UltraSonicXCR
 https://github.com/msnicklous/CommandCatcher.git|Contributed|CommandCatcher
 https://github.com/X-croot/RelayXCR.git|Contributed|RelayXCR
 https://github.com/X-croot/BuzzerXCR.git|Contributed|BuzzerXCR
+https://github.com/UnexpectedMaker/seriesd_arduino_helper.git|Contributed|UM SeriesD Helper