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-rw-r--r--modules/book.module2
1 files changed, 1 insertions, 1 deletions
diff --git a/modules/book.module b/modules/book.module
index 84c7d00de..3b88c3376 100644
--- a/modules/book.module
+++ b/modules/book.module
@@ -155,7 +155,7 @@ function book_toc($parent = "", $indent = "", $toc = array()) {
return $toc;
}
-function book_form($node) {
+function book_form($node, $error) {
global $user;
$output .= form_select(t("Parent"), "parent", $node->parent, book_toc(), t("The parent subject or category the page belongs in."));