src/Pure/Thy/session.ML
changeset 6262 0ebfcf181d84
parent 6240 3231375b701f
child 6275 c8b30f86aadf
--- a/src/Pure/Thy/session.ML	Mon Feb 08 17:31:50 1999 +0100
+++ b/src/Pure/Thy/session.ML	Mon Feb 08 17:32:06 1999 +0100
@@ -42,7 +42,7 @@
 
 fun init reset parent name =
   if not (parent mem_string (! session)) orelse not (! session_finished) then
-    error ("Unfinished parent session " ^ quote (str_of (! session)) ^ " for " ^ quote name)
+    error ("Unfinished parent session " ^ quote parent ^ " for " ^ quote name)
   else (add_path reset name; session_finished := false);