diff --git a/registry.txt b/registry.txt
index a520f958..55cd53cf 100644
--- a/registry.txt
+++ b/registry.txt
@@ -7404,3 +7404,4 @@ https://github.com/CMB27/ModbusRTUComm.git|Contributed|ModbusRTUComm
 https://github.com/Zhentao-Lin/ESP32_WS2812_Lib.git|Contributed|ESP32_WS2812_Lib
 https://github.com/stack-chan/stackchan-arduino.git|Contributed|stackchan-arduino
 https://github.com/adbancroft/avr-fast-div.git|Contributed|avr-fast-div
+https://github.com/adbancroft/avr-fast-shift.git|Contributed|avr-fast-shift