diff --git a/Documentation/CodingGuidelines b/Documentation/CodingGuidelines
index a0e7041c54..c1046abfb7 100644
--- a/Documentation/CodingGuidelines
+++ b/Documentation/CodingGuidelines
@@ -861,6 +861,9 @@ Markup:
    _<git-dir>_
    _<key-id>_
 
+Characters are also surrounded by underscores:
+   _LF_, _CR_, _CR_/_LF_, _NUL_, _EOF_
+
  Git's Asciidoc processor has been tailored to treat backticked text
  as complex synopsis. When literal and placeholders are mixed, you can
  use the backtick notation which will take care of correctly typesetting