diff -r 42d63ea39161 -r 8b50f29a1992 src/HOL/Library/Library.thy
--- a/src/HOL/Library/Library.thy	Fri May 11 22:59:00 2018 +0200
+++ b/src/HOL/Library/Library.thy	Sat May 12 11:24:11 2018 +0200
@@ -10,6 +10,7 @@
   Boolean_Algebra
   Bourbaki_Witt_Fixpoint
   Char_ord
+  Code_Lazy
   Code_Test
   Combine_PER
   Complete_Partial_Order2