diff -r 1b6283aa7c94 -r b21c82422d65 src/HOL/SPARK/Tools/spark_commands.ML
--- a/src/HOL/SPARK/Tools/spark_commands.ML	Fri Apr 03 21:25:55 2015 +0200
+++ b/src/HOL/SPARK/Tools/spark_commands.ML	Sat Apr 04 14:04:11 2015 +0200
@@ -123,7 +123,7 @@
 val _ =
   Outer_Syntax.command @{command_spec "spark_vc"}
     "enter into proof mode for a specific verification condition"
-    (Parse.name >> (fn name => Toplevel.local_theory_to_proof NONE (prove_vc name)));
+    (Parse.name >> (fn name => Toplevel.local_theory_to_proof NONE NONE (prove_vc name)));
 
 val _ =
   Outer_Syntax.command @{command_spec "spark_status"}