diff --git a/xCAT-server/lib/perl/xCAT/Postage.pm b/xCAT-server/lib/perl/xCAT/Postage.pm
index c123af333..68103323e 100644
--- a/xCAT-server/lib/perl/xCAT/Postage.pm
+++ b/xCAT-server/lib/perl/xCAT/Postage.pm
@@ -911,7 +911,8 @@ sub includefile
         next
           if (   /^\s*#/
               && !/^\s*#INCLUDE:[^#^\n]+#/
-              && !/^\s*#NEW_INSTALL_LIST#/);    #-- skip comments
+              && !/^\s*#NEW_INSTALL_LIST#/
+              && !/^\s*#ENV:[^#^\n]+#/);   #-- skip comments
         push(@text, $_);
     }