diff --git a/examples/address_to_district.py b/examples/address_to_district.py
index a987d43..39b8cb0 100755
--- a/examples/address_to_district.py
+++ b/examples/address_to_district.py
@@ -18,7 +18,7 @@ import cgi
 from polipoly import AddressToDistrictService
 
 GMAPS_API_KEY = 'define-me'
-PATH_TO_CDFILES = 
+PATH_TO_CDFILES = ''
 
 # run as a module
 if __name__ == '__main__':