diff -Nru haskell98-tutorial-200006-2/debian/changelog haskell98-tutorial-200006-2/debian/changelog
--- haskell98-tutorial-200006-2/debian/changelog	2016-12-10 13:58:19.000000000 +0000
+++ haskell98-tutorial-200006-2/debian/changelog	2018-02-20 07:01:46.000000000 +0000
@@ -1,3 +1,9 @@
+haskell98-tutorial (200006-2-2build1) bionic; urgency=medium
+
+  * No-change rebuild to pick up the shared flex library.
+
+ -- Matthias Klose <doko@ubuntu.com>  Tue, 20 Feb 2018 07:01:46 +0000
+
 haskell98-tutorial (200006-2-2) unstable; urgency=medium
 
   * QA upload.