diff --git a/registry.txt b/registry.txt
index 2d6d8469..7058fe50 100644
--- a/registry.txt
+++ b/registry.txt
@@ -4895,3 +4895,4 @@ https://github.com/Pixelbo/Pelco_And_Arduino.git|Contributed|Pelco_And_Arduino
 https://github.com/sitronlabs/SitronLabs_OPT3001_Arduino_Library.git|Contributed|Sitron Labs OPT3001 Ambient Light Sensor Arduino Library
 https://github.com/luoluomeng/HUSB238Driver.git|Contributed|HUSB238Driver
 https://github.com/luoluomeng/NST1001Driver.git|Contributed|NST1001Driver
+https://github.com/gavinlyonsrepo/HD44780_LCD_PCF8574.git|Contributed|HD44780_LCD_PCF8574