diff --git a/res/layout/puzzle_view_title.xml b/res/layout/puzzle_view_title.xml
index de36bcd..6e7ff20 100644
--- a/res/layout/puzzle_view_title.xml
+++ b/res/layout/puzzle_view_title.xml
@@ -6,7 +6,7 @@
android:background="#60404040"
android:layout_height="48dp"
android:layout_width="match_parent">
-
+ android:id="@+id/prev_btn"/-->
-
+ android:id="@+id/next_btn"/-->