Why Your Table of Contents Is Broken on Kindle (and How to Fix It)
A broken Kindle table of contents almost always means your EPUB's navigation doesn't match your document's real chapter structure. Here's why it happens and how to catch it before you convert.
By Magnus | Published 2026-10-30 | Category: Troubleshooting
A broken Kindle table of contents almost always means your EPUB's navigation document doesn't match your book's actual chapter structure — either chapters weren't marked with real heading styles in the source file, or the converter built a generic navigation file instead of reading your document's structure. Checking your heading hierarchy before converting catches it early.
What a Broken Table of Contents Looks Like
You tap "Go To" on a Kindle and expect to see every chapter listed, in order, with the right titles. Instead, a chapter is missing entirely, a chapter title shows as "Untitled" or a filename, tapping a chapter jumps to the wrong page, or only the first few chapters appear and the rest of the book is unreachable from the menu.
This is a navigation problem, not a content problem — the actual text of your book is almost always intact. What's missing is the structural map that tells Kindle's reading app where each chapter begins.
Why It Happens: Navigation Is Built From Real Headings, Not From How Text Looks
An EPUB's table of contents comes from its navigation document, which lists an entry for every heading the conversion process recognized as a true structural heading. The key word is recognized — the navigation builder isn't reading your document the way a person does. It's looking for a specific structural signal: a paragraph tagged with a Heading style (Heading 1 for chapters, Heading 2 or 3 for sub-sections).
If you made a chapter title look like a heading by manually making it bold and increasing the font size, rather than applying Word's actual Heading 1 style, the navigation builder has no structural signal to work from. Visually, in your word processor, the two approaches look identical. Structurally, one produces a table of contents entry and the other produces nothing.
Check Your Heading Hierarchy First
Before converting a Word manuscript, run the free structural check at MJ Convert Systems — no account required. It reports exactly how many chapter-level (Heading 1) and sub-heading (Heading 2/3) styles it detected using Word's own built-in heading styles, and these are precisely what carries into your table of contents. If the count is lower than your actual chapter count, you know immediately which chapters weren't tagged correctly, before you've spent anything on a conversion.
The Fix
- In Word, select each chapter title and apply the actual Heading 1 style from the Styles panel — not manual bold and font-size formatting that only looks like a heading.
- Use Heading 2 or Heading 3 consistently for any sub-sections you want to appear nested under a chapter in the table of contents.
- Re-run the free check and confirm the heading count now matches your actual chapter count.
- Convert through MJ Convert Systems — every EPUB it produces includes a valid EPUB 3 navigation document and a legacy NCX file for older Kindle firmware, built automatically from your document's real heading structure, with no manual table-of-contents authoring required.
The same underlying cause — content that looks structured but isn't tagged as such — is also behind a handful of other common KDP rejection reasons, so checking heading structure early tends to catch more than just the table of contents.
Frequently Asked Questions
- Why is my Kindle table of contents missing chapters?
- A chapter is missing from the Kindle "Go To" menu when the EPUB's navigation document doesn't list it — usually because the source document didn't mark that chapter title with a real heading style, so the converter had no structural signal to build a navigation entry from.
- Why doesn't making my chapter title bold and large fix the table of contents?
- Making text visually look like a heading — bold, larger font size — only changes its appearance. EPUB navigation is built from actual heading styles (Heading 1, Heading 2, and so on), not from visual formatting. Text that looks like a heading but isn't tagged as one is invisible to the navigation-building process.
- Does this affect Word manuscripts, PDFs, or both?
- It's most directly diagnosable in a Word manuscript, because Word's built-in Heading styles are what the navigation gets built from, and you can check whether they're actually applied before converting. A PDF's own internal structure can have the equivalent problem if the source design tool didn't tag chapter headings as true headings during export.
- Does MJ Convert Systems generate the table of contents automatically?
- Every EPUB MJ Convert Systems produces includes a valid EPUB 3 navigation document, plus a legacy NCX file for older Kindle firmware that still relies on it — both built automatically as part of every conversion, with no manual table-of-contents authoring required.
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