diff --git a/mod/book/locallib.php b/mod/book/locallib.php
index 0cfe1921b7e..556b2c873de 100644
--- a/mod/book/locallib.php
+++ b/mod/book/locallib.php
@@ -299,9 +299,20 @@ function book_get_toc($chapters, $chapter, $book, $cm, $edit) {
             $toc .= html_writer::link(new moodle_url('edit.php', array('cmid' => $cm->id, 'id' => $ch->id)),
                     $OUTPUT->pix_icon('t/edit', get_string('editchapter', 'mod_book', $title)),
                     array('title' => get_string('editchapter', 'mod_book', $titleunescaped)));
-            $toc .= html_writer::link(new moodle_url('delete.php', array('id' => $cm->id, 'chapterid' => $ch->id, 'sesskey' => $USER->sesskey)),
-                        $OUTPUT->pix_icon('t/delete', get_string('deletechapter', 'mod_book', $title)),
-                        array('title' => get_string('deletechapter', 'mod_book', $titleunescaped)));
+
+            $deleteaction = new confirm_action(get_string('deletechapter', 'mod_book', $titleunescaped));
+            $toc .= $OUTPUT->action_icon(
+                    new moodle_url('delete.php', [
+                            'id'        => $cm->id,
+                            'chapterid' => $ch->id,
+                            'sesskey'   => sesskey(),
+                            'confirm'   => 1,
+                        ]),
+                    new pix_icon('t/delete', get_string('deletechapter', 'mod_book', $title)),
+                    $deleteaction,
+                    ['title' => get_string('deletechapter', 'mod_book', $titleunescaped)]
+                );
+
             if ($ch->hidden) {
                 $toc .= html_writer::link(new moodle_url('show.php', array('id' => $cm->id, 'chapterid' => $ch->id, 'sesskey' => $USER->sesskey)),
                         $OUTPUT->pix_icon('t/show', get_string('showchapter', 'mod_book', $title)),