diff --git a/registry.txt b/registry.txt
index e8eb0afd..174cb549 100644
--- a/registry.txt
+++ b/registry.txt
@@ -3645,3 +3645,4 @@ https://github.com/pololu/pololu-menu-arduino.git|Contributed|PololuMenu
 https://github.com/davidchatting/Approximate.git|Contributed|Approximate
 https://github.com/lucyamy/LapINA219.git|Contributed|LapINA219
 https://github.com/lucyamy/LapI2CTop.git|Contributed|LapI2CTop
+https://github.com/iotec-gmbh/M5_RTC_Module.git|Contributed|M5_RTC_Module