diff --git a/factory/build_confs.py b/factory/build_confs.py
index fd09b16..a91dcff 100644
--- a/factory/build_confs.py
+++ b/factory/build_confs.py
@@ -2,7 +2,9 @@
 
 import re
 import time
+import os
 
+os.chdir('./factory')
 
 # confs names in template/ and ../
 # except sr_head and sr_foot