diff --git a/scripts/geodata/openaddresses/formatter.py b/scripts/geodata/openaddresses/formatter.py
index e7aef4ac..1ef2a62e 100644
--- a/scripts/geodata/openaddresses/formatter.py
+++ b/scripts/geodata/openaddresses/formatter.py
@@ -246,7 +246,7 @@ class OpenAddressesFormatter(object):
         ignore_fields_containing = {field: re.compile(six.u('|').join([six.u('(?:{})').format(safe_decode(v)) for v in value]), re.I | re.UNICODE)
                                     for field, value in six.iteritems(dict(self.get_property('ignore_fields_containing', *configs) or {}))}
 
-        alias_fields_containing = {field: [(re.compile(v['pattern']), re.I | re.UNICODE), v) for v in value]
+        alias_fields_containing = {field: [(re.compile(v['pattern'], re.I | re.UNICODE), v) for v in value]
                                    for field, value in six.iteritems(dict(self.get_property('alias_fields_containing', *configs) or {}))}
 
         language = self.get_property('language', *configs)