diff --git a/SC2010.md b/SC2010.md
index dcc5f4e..badeb93 100644
--- a/SC2010.md
+++ b/SC2010.md
@@ -41,7 +41,7 @@ done
 
 ### Exceptions:
 
-None
+- `ls` has sorting options that are tricky to get right with other commands. If a specific order of files is needed, ls _\<sort options\>_ | grep might be the best alternative.
 
 ### Related resources: