diff --git a/repositories.txt b/repositories.txt
index ef241a5b9..26c97aea1 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -2046,6 +2046,7 @@ https://github.com/DFRobot/DFRobot_BMP280
 https://github.com/DFRobot/DFRobot_BMP3XX
 https://github.com/DFRobot/DFRobot_BMX160
 https://github.com/DFRobot/DFRobot_BT401
+https://github.com/DFRobot/DFRobot_C4001
 https://github.com/DFRobot/DFRobot_CCS811
 https://github.com/DFRobot/DFRobot_CH423
 https://github.com/DFRobot/DFRobot_DF1101S