diff --git a/shellguide.md b/shellguide.md
index 3639fa9..a35a765 100644
--- a/shellguide.md
+++ b/shellguide.md
@@ -27,10 +27,6 @@ Authored, revised and maintained by many Googlers.
     *   [3.1 STDOUT vs STDERR](#s3.1-stdout-vs-stderr)
 -   [4 Comments](#s4-comments)
     *   [4.1 File Header](#s4.1-file-header)
-        +   [4.1.1 $Id$](#s4.1.1-id)
-        +   [4.1.2 $Id$ Pros](#s4.1.2-id-pros)
-        +   [4.1.3 $Id$ Cons](#s4.1.3-id-cons)
-        +   [4.1.4 $Id$ Decision](#s4.1.4-id-decision)
     *   [4.2 Function Comments](#s4.2-function-comments)
     *   [4.3 Implementation Comments](#s4.3-implementation-comments)
     *   [4.4 TODO Comments](#s4.4-todo-comments)