diff --git a/tren.py b/tren.py
index 16316b0..845c1b4 100755
--- a/tren.py
+++ b/tren.py
@@ -8,7 +8,7 @@
 PROGNAME = "tren.py"
 BASENAME = PROGNAME.split(".py")[0]
 PROGENV  = BASENAME.upper()
-RCSID = "$Id: tren.py,v 1.212 2010/03/28 19:52:04 tundra Exp $"
+RCSID = "$Id: tren.py,v 1.213 2010/03/29 20:37:26 tundra Exp $"
 VERSION = RCSID.split()[2]
 
 # Copyright Information
@@ -1272,7 +1272,14 @@
             # Environment Variable replacement token
             
             elif r[2].startswith(TOKENV):
+
                 r[2] = os.getenv(r[2][1:])
+ 
+                # Handle case for nonexistent environment variable
+                
+                if not r[2]:
+                    r[2] = ""
+               
             
             # Command Run replacement token