diff -r 7aa9ac5165e4 -r 54f16a0a3069 src/HOL/ROOT
--- a/src/HOL/ROOT	Thu May 12 22:06:18 2016 +0200
+++ b/src/HOL/ROOT	Fri May 13 20:22:02 2016 +0200
@@ -32,6 +32,7 @@
   theories
     Library
     Rewrite
+    Nonpos_Ints
     (*conflicting type class instantiations*)
     List_lexord
     Sublist_Order