diff --git a/repositories.txt b/repositories.txt
index c76d561b6..6f58b7a1d 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -5882,6 +5882,7 @@ https://github.com/RobTillaart/SHT31_SW
 https://github.com/RobTillaart/SHT31_SWW
 https://github.com/RobTillaart/SHT85
 https://github.com/RobTillaart/SIMON
+https://github.com/RobTillaart/SMC
 https://github.com/RobTillaart/Soundex
 https://github.com/RobTillaart/SparseArray
 https://github.com/RobTillaart/SparseMatrix