diff --git a/repositories.txt b/repositories.txt
index 15215364..280d2b1c 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -3573,6 +3573,7 @@ https://github.com/RobTillaart/PERIPUMP
 https://github.com/RobTillaart/PID_RT
 https://github.com/RobTillaart/PinInGroup
 https://github.com/RobTillaart/PinOutGroup
+https://github.com/RobTillaart/PIR
 https://github.com/RobTillaart/Prandom
 https://github.com/RobTillaart/pressure
 https://github.com/RobTillaart/PrintCharArray