diff --git a/xCAT/postscripts/ospkgs b/xCAT/postscripts/ospkgs
index 0a8354d7e..bec1b22b7 100755
--- a/xCAT/postscripts/ospkgs
+++ b/xCAT/postscripts/ospkgs
@@ -115,6 +115,10 @@ pkgs_d=''   #packages to remove
 
 OIFS=$IFS
 IFS=$(printf '\n')
+if ( pmatch "$OSVER" "ubuntu*" ); then
+    IFS=$(printf '\n')
+fi
+
 for x in `echo "$OSPKGS" | tr "," "\n"`
 do
     #remove leading and trailing spaces