diff --git a/registry.txt b/registry.txt
index 1a90aa42..3c7e2f30 100644
--- a/registry.txt
+++ b/registry.txt
@@ -2049,3 +2049,4 @@ https://github.com/paulo-raca/Arduino_AsyncLiquidCrystal.git|Contributed|AsyncLi
 https://github.com/RobotCing/Attiny85_IO.git|Contributed|Attiny85_IO
 https://github.com/RobotCing/Attiny85_IO_basic.git|Contributed|Attiny85_IO_basic
 https://github.com/RobotCing/Attiny84_IO.git|Contributed|Attiny84_IO
+https://github.com/RobotCing/Attiny84_IO_basic.git|Contributed|Attiny84_IO_basic