diff --git a/registry.txt b/registry.txt
index 1a351de5..42180609 100644
--- a/registry.txt
+++ b/registry.txt
@@ -1763,3 +1763,4 @@ https://github.com/bricofoy/yasm.git|Contributed|YASM
 https://github.com/sparkfun/Sparkfun_RGB_OLED_64x64_Arduino_Library.git|Contributed|SparkFun RGB OLED 64x64 Library
 https://github.com/PeterEmbedded/BH1750FVI.git|Contributed|BH1750FVI
 https://github.com/bblanchon/ArduinoTrace.git|Contributed|ArduinoTrace
+https://github.com/eecharlie/MatrixMath.git|Contributed|MatrixMath