diff --git a/tren.py b/tren.py
index c409a66..7abbb43 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 1.233 2010/08/27 15:39:21 tundra Exp $"
+RCSID = "$Id: tren.py,v 1.234 2010/08/27 16:13:01 tundra Exp $"
 VERSION = RCSID.split()[2]
 
 # Copyright Information
@@ -1208,7 +1208,7 @@
 
                 if ProgramOptions[BACKUPS]:
 
-                    bkuname = oldname + ProgramOptions[EXISTSUFFIX]
+                    bkuname = newname + ProgramOptions[EXISTSUFFIX]
                     InfoMsg(indent + iRENFORCED % fullnew)
                     self.__RenameIt(pathname, newname, bkuname)