diff options
Diffstat (limited to 'modules/book')
| -rw-r--r-- | modules/book/book.module | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/modules/book/book.module b/modules/book/book.module index 8216d617a..e8a68a789 100644 --- a/modules/book/book.module +++ b/modules/book/book.module @@ -507,7 +507,7 @@ function theme_book_navigation($node) { * This is a helper function for book_toc(). */ function book_toc_recurse($nid, $indent, $toc, $children, $exclude) { - if ($children[$nid]) { + if (isset($children[$nid])) { foreach ($children[$nid] as $foo => $node) { if (!$exclude || $exclude != $node->nid) { $toc[$node->nid] = $indent .' '. $node->title; |