only harden non filler

configure.py

diff --git a/configure.py b/configure.py
index 6d952ad..c8d3048 100755
--- a/configure.py
+++ b/configure.py
@@ -73,7 +73,8 @@
             project.load_yaml()
 
             if args.harden:
-                project.harden()
+                if filler is False:
+                    project.harden()
 
             if args.update_caravel:
                 logging.debug("copying files to caravel")