diff --git a/apps/location/serializers/common.py b/apps/location/serializers/common.py
index e724979f..8c9cf07b 100644
--- a/apps/location/serializers/common.py
+++ b/apps/location/serializers/common.py
@@ -224,8 +224,8 @@ class AddressEstablishmentSerializer(AddressBaseSerializer):
     """Address serializer."""
 
     id = serializers.IntegerField(required=False)
-    street_name_1 = serializers.CharField(required=False, default='')
-    street_name_2 = serializers.CharField(required=False, default='')
+    street_name_1 = serializers.CharField(required=False, allow_blank=True, default='')
+    street_name_2 = serializers.CharField(required=False, allow_blank=True, default='')
     number = serializers.IntegerField(required=False, default=0)
     postal_code = serializers.CharField(required=False, default='')
     city_id = serializers.PrimaryKeyRelatedField(