diff --git a/repositories.txt b/repositories.txt
index b16ca4ad..342bfdbd 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -215,6 +215,7 @@ https://github.com/107-systems/107-Arduino-Debug
 https://github.com/107-systems/107-Arduino-MCP2515
 https://github.com/107-systems/107-Arduino-NMEA-Parser
 https://github.com/107-systems/107-Arduino-TMF8801
+https://github.com/107-systems/107-Arduino-TSL2550
 https://github.com/107-systems/107-Arduino-UAVCAN
 https://github.com/1IoT/cloud-connectivity-lib
 https://github.com/loginov-rocks/UbxGps