diff --git a/TODO b/TODO
index 10dbe099..263a0d22 100644
--- a/TODO
+++ b/TODO
@@ -7,6 +7,9 @@ This is the list of TODO items for SnapRAID.
 
 - Minor
 
+* Add an option to ignore subsecond timestamp.
+Like when you copy data to a filesystem with less timestamp precision.
+
 * Extend haspdeep to support the SnapRAID hash :
 https://github.com/jessek/hashdeep/
 https://sourceforge.net/p/snapraid/discussion/1677233/thread/90b0e9b2/?limit=25