diff --git a/webservice/bam/config.py.example.py b/webservice/bam/config.py.example
similarity index 64%
rename from webservice/bam/config.py.example.py
rename to webservice/bam/config.py.example
index 2502c63..99e4490 100644
--- a/webservice/bam/config.py.example.py
+++ b/webservice/bam/config.py.example
@@ -4,4 +4,4 @@ class Config(object):
 class Development(Config):
     STORAGE_PATH='/Volumes/PROJECTS/storage'
     UPLOAD_FOLDER = '/Volumes/PROJECTS/storage_staging'
-    ALLOWED_EXTENSIONS = set(['txt', 'mp4', 'png', 'jpg', 'jpeg', 'gif', 'blend', 'zip'])
+    ALLOWED_EXTENSIONS = {'txt', 'mp4', 'png', 'jpg', 'jpeg', 'gif', 'blend', 'zip'}