diff -r 9b2427cc234e -r 7d5c4e73c89e src/Pure/Isar/outer_syntax.ML
--- a/src/Pure/Isar/outer_syntax.ML	Wed Jul 02 16:40:15 2008 +0200
+++ b/src/Pure/Isar/outer_syntax.ML	Wed Jul 02 16:40:17 2008 +0200
@@ -202,7 +202,7 @@
   let
     val result = ref thy;
     val trs = parse (Path.position path) (File.read path);
-    val init = Toplevel.init_theory (K thy) (fn thy' => result := thy') (K ());
+    val init = Toplevel.init_theory "" (K thy) (fn thy' => result := thy') (K ());
     val _ = Toplevel.excursion (init Toplevel.empty :: trs @ [Toplevel.exit Toplevel.empty]);
   in ! result end;