MS Word Create Table of Contents (TOC)

Been following directions to have MS Word create a Table of Contents (TOC) for chapters in a book. Table does appear, but with only one item in it:  the table itself with its page #.  But I can't get it to "see" all the chapters.

The chapter titles have their own style which is supposed to cause the "automatic" TOC function to be able to include them in the TOC. 

I gave the TOC itself that same chapter style, so that may be why it listed itself, but it won't list any other chapters.

Thanks for any clues