diff --git a/swh/fetcher/googlecode/loader.py b/swh/fetcher/googlecode/loader.py
index aef93c0..669f25a 100644
--- a/swh/fetcher/googlecode/loader.py
+++ b/swh/fetcher/googlecode/loader.py
@@ -1,160 +1,150 @@
 # Copyright (C) 2015-2016  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 import logging
 import os
 import requests
 
 from swh.core import config, hashutil
 
 from .utils import transform
-from .hashutil import crc32c_hash, md5_hash, md5_from_b64, crc32c_from_b64
+from .hashutil import md5_hash, md5_from_b64
 
 
 class SWHGoogleFetcher(config.SWHConfig):
     """A swh data fetcher loader.
 
     This fetcher will:
 
     - retrieve the archive metadata and write it to disk.
 
     - download the archive to retrieve and write it to disk.
 
     - check that size and checksums (md5, crc32c) match those describe
       in the metadata.
 
     """
     def __init__(self):
         self.log = logging.getLogger('swh.fetcher.google.SWHGoogleFetcher')
 
         l = logging.getLogger('requests.packages.urllib3.connectionpool')
         l.setLevel(logging.WARN)
 
     def retrieve_source_meta(self, url_meta, filepath_meta):
         if os.path.exists(filepath_meta):
             import json
             with open(filepath_meta, 'r') as f:
                 meta = json.loads(f.read())
         else:
             meta = {}
             try:
                 r = requests.get(url_meta)
             except Exception as e:
                 msg = 'Problem when fetching metadata %s.' % url_meta
                 self.log.error(msg)
                 raise ValueError(msg, e)
             else:
                 meta = r.json()
 
                 with open(filepath_meta, 'w') as f:
                     f.write(r.text)
 
         return meta
 
     def retrieve_source(self, url, filepath):
         if not os.path.exists(filepath):
             self.log.debug('Fetching %s\' raw data.' % url)
             try:
                 r = requests.get(url, stream=True)
             except Exception as e:
                 msg = 'Problem when fetching file %s.' % url
                 self.log.error(msg)
                 raise ValueError(msg, e)
             else:
                 if not r.ok:
                     msg = 'Problem when fetching file %s.' % url
                     self.log.error(msg)
                     raise ValueError(msg)
                 else:
                     with open(filepath, 'wb') as f:
                         for chunk in r.iter_content(hashutil.HASH_BLOCK_SIZE):
                             f.write(chunk)
 
     def check_source(self, meta, filepath):
         expected = {
-            'crc32c': crc32c_from_b64(meta['crc32c']),
             'md5': md5_from_b64(meta['md5Hash']),
             'size': int(meta['size'])
         }
 
         error = False
         actual_size = os.path.getsize(filepath)
         if actual_size != expected['size']:
             msg = 'Bad size. Expected: %s. Got: %s' % (
                 expected['size'], actual_size)
             self.log.error(msg)
             error = True
 
         self.log.debug('Checking %s\' raw data checksums and size.' %
                        filepath)
         # Last, check the metadata are ok
         with open(filepath, 'rb') as f:
             md5_h = md5_hash(f)
             if md5_h != expected['md5']:
                 msg = 'Bad md5 signature. Expected: %s. Got: %s' % (
                     expected['md5'], md5_h)
                 self.log.error(msg)
                 error = True
 
-            f.seek(0)
-
-            crc32c_h = crc32c_hash(f)
-            if expected['crc32c'] != crc32c_h:
-                msg = 'Bad crc32c signature. Expected: %s. Got: %s' % (
-                    expected['crc32c'], crc32c_h)
-                self.log.error(msg)
-                error = True
-
         return error
 
     def process(self, archive_gs, destination_rootpath):
         self.log.info('Fetch %s\'s metadata' % archive_gs)
 
         # First retrieve the archive gs's metadata
         parent_dir, filename, url_meta, url_content = transform(
             archive_gs)
 
         parent_dir = os.path.join(destination_rootpath, parent_dir)
 
         os.makedirs(parent_dir, exist_ok=True)
 
         project_name = os.path.basename(parent_dir)
 
         filename = project_name + '-' + filename
         filename_meta = filename + '.json'
 
         filepath = os.path.join(parent_dir, filename)
         filepath_meta = os.path.join(parent_dir, filename_meta)
 
         meta = self.retrieve_source_meta(url_meta, filepath_meta)
         if not meta:
             raise ValueError('Fail to download metadata, stop.')
 
         # check existence of the file
         if os.path.exists(filepath):
             # it already exists, check it's ok
                 errors = self.check_source(meta, filepath)
                 if errors:
                     if os.path.exists(filepath):
                         self.log.error('Clean corrupted file %s' % filepath)
                         os.remove(filepath)
                 else:  # it's ok, we are done!
                     self.log.info('Archive %s already fetched!' % archive_gs)
                     return
 
         # the file does not exist, we retrieve it
         self.retrieve_source(meta['mediaLink'], filepath)
 
         # Third - Check the retrieved source
         errors = self.check_source(meta, filepath)
         if errors:
             if os.path.exists(filepath):
                 filepath_corrupted = filepath + '.corrupted'
                 self.log.error('Rename corrupted file %s to %s' % (
                     os.path.basename(filepath),
                     os.path.basename(filepath_corrupted)))
                 os.rename(filepath, filepath_corrupted)
         else:
             self.log.info('Archive %s fetched.' % archive_gs)