diff --git a/TODO b/TODO
index 6912943b..60df3426 100644
--- a/TODO
+++ b/TODO
@@ -22,6 +22,9 @@ Known bugs
     need some tweaking and maybe this issue can be minimized without
     making the typical case too much slower.
 
+    xz doesn't quote unprintable characters when it displays file names
+    given on the command line.
+
 
 Missing features
 ----------------