diff --git a/README.md b/README.md
index 2221bcb..866b439 100644
--- a/README.md
+++ b/README.md
@@ -193,3 +193,9 @@ Run
     t --help
 
 to see the options.
+
+## Special Thanks
+
+To [timetrap](https://github.com/samg/timetrap) for existing. It is the tool I
+was looking for and whose design I took as reference, keeping compatibility when
+possible.