diff --git a/doc/misc/calc.texi b/doc/misc/calc.texi
index b1e4221bd5b..dd90dfdef7c 100644
--- a/doc/misc/calc.texi
+++ b/doc/misc/calc.texi
@@ -168,7 +168,7 @@ longer Info tutorial.)
 @menu
 * Getting Started::       General description and overview.
 @ifinfo
-* Interactive Tutorial::
+* Interactive Tutorial::  Using the Emacs Info system with this tutorial.
 @end ifinfo
 @ifnotinfo
 * Tutorial::              A step-by-step introduction for beginners.
@@ -1246,7 +1246,7 @@ finished in two weeks.
 @ifinfo
 @c This node is accessed by the 'C-x * t' command.
 @node Interactive Tutorial, Introduction, Getting Started, Top
-@chapter Tutorial
+@chapter Interactive Tutorial
 
 @noindent
 Some brief instructions on using the Emacs Info system for this tutorial:
@@ -9573,7 +9573,12 @@ the last rule.
 
 @c [reference]
 
-@node Introduction
+@ifinfo
+@node Introduction, Data Types, Interactive Tutorial, Top
+@end ifinfo
+@ifnotinfo
+@node Introduction, Data Types, Tutorial, Top
+@end ifnotinfo
 @chapter Introduction
 
 @noindent