diff --git a/pages/common/less-than.md b/pages/common/less-than.md
index 09c070a47dd580..36b92fbbcc63d2 100644
--- a/pages/common/less-than.md
+++ b/pages/common/less-than.md
@@ -27,7 +27,7 @@
 
 `cat <<- {{EOF}} > {{path/to/file.txt}} <Enter> {{multiline_data}} <Enter> {{EOF}}`
 
-- Pass command output to a program as a file descriptor:
+- Pass command output to a program as a file descriptor (Note: unlike the rest of these, this replaces the argument in-place with a file path like `/dev/fd/63`):
 
 `diff <({{command1}}) <({{command2}})`