diff -r 450cefec7c11 -r cc19f7ca2ed6 src/HOL/Quotient_Examples/Quotient_Int.thy
--- a/src/HOL/Quotient_Examples/Quotient_Int.thy	Fri Aug 18 13:55:05 2017 +0200
+++ b/src/HOL/Quotient_Examples/Quotient_Int.thy	Fri Aug 18 20:47:47 2017 +0200
@@ -7,7 +7,7 @@
 *)
 
 theory Quotient_Int
-imports "~~/src/HOL/Library/Quotient_Product" Nat
+imports "HOL-Library.Quotient_Product" HOL.Nat
 begin
 
 fun