diff --git a/doc/lispref/commands.texi b/doc/lispref/commands.texi
index b4a8b733a0..6d45099867 100644
--- a/doc/lispref/commands.texi
+++ b/doc/lispref/commands.texi
@@ -601,6 +601,9 @@ Interactive Examples

 @node Command Modes
 @subsection Specifying Modes For Commands
+@cindex commands, mode-specific
+@cindex commands, specify as mode-specific
+@cindex mode-specific commands

 Many commands in Emacs are general, and not tied to any specific mode.
 For instance, @kbd{M-x kill-region} can be used in pretty much any
diff --git a/doc/lispref/elisp.texi b/doc/lispref/elisp.texi
index 8b440c7977..337c71c295 100644
--- a/doc/lispref/elisp.texi
+++ b/doc/lispref/elisp.texi
@@ -788,6 +788,7 @@ Top
 * Interactive Codes::       The standard letter-codes for reading arguments
                               in various ways.
 * Interactive Examples::    Examples of how to read interactive arguments.
+* Command Modes::            Specifying that commands are for a specific mode.
 * Generic Commands::        Select among command alternatives.