--- a/src/HOL/SPARK/Manual/Reference.thy	Fri Aug 18 13:55:05 2017 +0200
+++ b/src/HOL/SPARK/Manual/Reference.thy	Fri Aug 18 20:47:47 2017 +0200
@@ -1,6 +1,6 @@
 (*<*)
 theory Reference
-imports "../SPARK"
+imports SPARK
 begin
 
 syntax (my_constrain output)