diff --git a/registry.txt b/registry.txt
index bb86964d..c3323e2e 100644
--- a/registry.txt
+++ b/registry.txt
@@ -1925,3 +1925,4 @@ https://github.com/sparkfun/SparkFun_Flying_Jalapeno_Arduino_Library.git|Contrib
 https://github.com/LILCMU/GoGoBright.git|Contributed|LILCMU GoGoBright Library
 https://github.com/cloudchip-tech/ciot-iot-lib.git|Contributed|Cloudchip IoT
 https://github.com/hutorny/cojson.lib.git|Contributed|Cojson
+https://github.com/end2endzone/AnyRtttl.git|Contributed|AnyRtttl