diff --git a/kingfisher_scrapy/item_schema/item.json b/kingfisher_scrapy/item_schema/item.json
index 9f6fba66d..3004142be 100644
--- a/kingfisher_scrapy/item_schema/item.json
+++ b/kingfisher_scrapy/item_schema/item.json
@@ -44,7 +44,8 @@
             "release_package_json_lines",
             "record_package_json_lines",
             "release_package_in_ocdsReleasePackage_in_list_in_results",
-            "release_in_Release"
+            "release_in_Release",
+            "zip"
           ]
         },
         "encoding": {
diff --git a/kingfisher_scrapy/spiders/chile_base.py b/kingfisher_scrapy/spiders/chile_base.py
index 356192418..268fe7476 100644
--- a/kingfisher_scrapy/spiders/chile_base.py
+++ b/kingfisher_scrapy/spiders/chile_base.py
@@ -42,6 +42,11 @@ def start_requests(self):
     @handle_http_error
     def parse_list(self, response):
         data = json.loads(response.text)
+        # some files contain invalid packages, eg:
+        # {
+        #   "status": 500,
+        #   "detail": "error"
+        # }
         if 'status' in data and data['status'] != 200:
             yield self.build_file_error_from_response(response, errors={'http_code': data['status']})
             return
diff --git a/kingfisher_scrapy/spiders/chile_compra_bulk.py b/kingfisher_scrapy/spiders/chile_compra_bulk.py
index 54fb273e7..07b4f9d43 100644
--- a/kingfisher_scrapy/spiders/chile_compra_bulk.py
+++ b/kingfisher_scrapy/spiders/chile_compra_bulk.py
@@ -1,6 +1,8 @@
+import json
 from datetime import date
 
 from kingfisher_scrapy.base_spider import ZipSpider
+from kingfisher_scrapy.items import FileError
 from kingfisher_scrapy.util import components, date_range_by_month
 
 
@@ -10,7 +12,7 @@ class ChileCompraBulk(ZipSpider):
       https://desarrolladores.mercadopublico.cl/OCDS/DescargaMasiva
     Spider arguments
       sample
-        Download only data released on February 2017.
+        Download only data released this month.
     """
     name = 'chile_compra_bulk'
     data_type = 'record_package'
@@ -27,6 +29,20 @@ def start_requests(self):
         stop = date.today().replace(day=1)
         if self.sample:
             start = stop
-
         for d in date_range_by_month(start, stop):
             yield self.build_request(url.format(d), formatter=components(-1))
+
+    def build_file(self, file_name=None, url=None, data=None, data_type=None, encoding='utf-8', post_to_api=True):
+        json_data = json.loads(data)
+        # some files contain invalid record packages, eg:
+        # {
+        #   "status": 500,
+        #   "detail": "error"
+        # }
+        if 'status' in json_data and json_data['status'] != 200:
+            return FileError({
+                'url': url,
+                'errors': {'http_code': json_data['status']},
+            })
+        else:
+            return super().build_file(data=data, file_name=file_name, url=url, data_type=data_type, encoding=encoding)