diff --git a/registry.txt b/registry.txt
index 424ffdd9..6939269c 100644
--- a/registry.txt
+++ b/registry.txt
@@ -7904,3 +7904,4 @@ https://github.com/SequentMicrosystems/Sequent-8crt-Library.git|Contributed|SM_8
 https://github.com/mvader2/AD5252.git|Contributed|AD5252
 https://github.com/RobTillaart/PCF85263.git|Contributed|PCF85263
 https://github.com/hmueller01/pubsubclient3.git|Contributed|PubSubClient3
+https://github.com/dac1e/RtcDueRcf.git|Contributed|RtcDueRcf