diff -r dede9cf1bd2a -r 38598a19e701 lib/scripts/run-mlworks
--- a/lib/scripts/run-mlworks	Fri Sep 15 20:19:24 2000 +0200
+++ b/lib/scripts/run-mlworks	Fri Sep 15 20:20:45 2000 +0200
@@ -6,7 +6,7 @@
 #
 # MLWorks startup script (for 1.0r2 or later).
 
-export -n INFILE OUTFILE COMPRESS MLTEXT TERMINATE NOWRITE ISABELLE_TMP
+export -n INFILE OUTFILE COMPRESS MLTEXT TERMINATE NOWRITE
 
 
 ## diagnostics