diff --git a/src/app.js b/src/app.js
index c1689ef..eb8c3e4 100644
--- a/src/app.js
+++ b/src/app.js
@@ -19,8 +19,8 @@ db.on('error', function (err) {
 db.once('open', function () {
   logger.info('Connected to db.');
   // hoh8.run();
-  // book.run();
-  bookChapter.run();
+  book.run();
+  // bookChapter.run();
 });
 mongoose.connect(config.db, {promiseLibrary: Promise, useNewUrlParser: true});