diff --git a/repositories.txt b/repositories.txt
index 41b008d6..0aef1253 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -1905,6 +1905,7 @@ https://github.com/jeremycole/TI_TCA9548A
 https://github.com/jeremylindsayni/Bifrost.Arduino.Sensors.HCSR04
 https://github.com/jeroenvermeulen/JeVe_EasyOTA
 https://github.com/jfitter/MLX90614
+https://github.com/jfjlaros/serialMux
 https://github.com/jfjlaros/simpleRPC
 https://github.com/jgOhYeah/LCDGraph
 https://github.com/jgOhYeah/TunePlayer