diff --git a/tren.py b/tren.py
index 03d1b8e..79aa72d 100755
--- a/tren.py
+++ b/tren.py
@@ -9,7 +9,7 @@
 BASENAME = PROGNAME.split(".py")[0]
 PROGENV  = BASENAME.upper()
 INCLENV  = PROGENV + "INCL"
-RCSID = "$Id: tren.py,v 1.219 2010/08/10 13:27:02 tundra Exp $"
+RCSID = "$Id: tren.py,v 1.220 2010/08/10 14:36:25 tundra Exp $"
 VERSION = RCSID.split()[2]
 
 # Copyright Information
@@ -1979,7 +1979,7 @@
 
 envopt = os.getenv(PROGENV)
 if envopt:
-    OPTIONS = envopt.split() + OPTIONS
+    OPTIONS = shlex.split(envopt) + OPTIONS
 
 # Deal with include files