diff -r 450cefec7c11 -r cc19f7ca2ed6 src/HOL/Imperative_HOL/ex/Imperative_Quicksort.thy
--- a/src/HOL/Imperative_HOL/ex/Imperative_Quicksort.thy	Fri Aug 18 13:55:05 2017 +0200
+++ b/src/HOL/Imperative_HOL/ex/Imperative_Quicksort.thy	Fri Aug 18 20:47:47 2017 +0200
@@ -8,8 +8,8 @@
 imports
   "~~/src/HOL/Imperative_HOL/Imperative_HOL"
   Subarray
-  "~~/src/HOL/Library/Multiset"
-  "~~/src/HOL/Library/Code_Target_Numeral"
+  "HOL-Library.Multiset"
+  "HOL-Library.Code_Target_Numeral"
 begin
 
 text \<open>We prove QuickSort correct in the Relational Calculus.\<close>