diff --git a/awsfindingsmanagerlib/__init__.py b/awsfindingsmanagerlib/__init__.py
index 1f21226..48b3252 100755
--- a/awsfindingsmanagerlib/__init__.py
+++ b/awsfindingsmanagerlib/__init__.py
@@ -27,7 +27,7 @@
 """
 from ._version import __version__
 from .awsfindingsmanagerlib import FindingsManager, Rule, Finding
-from .backends import Http
+from .backends import Http, S3
 
 __author__ = '''Marwin Baumann <mbaumann@schubergphilis.com>, Costas Tyfoxylos <ctyfoxylos@schubergphilis.com>'''
 __docformat__ = '''google'''
@@ -46,3 +46,4 @@
 assert Finding
 
 assert Http
+assert S3
diff --git a/awsfindingsmanagerlib/backends.py b/awsfindingsmanagerlib/backends.py
index 878e0e7..117f100 100644
--- a/awsfindingsmanagerlib/backends.py
+++ b/awsfindingsmanagerlib/backends.py
@@ -120,7 +120,7 @@ def __init__(self, bucket_name, file_name):
     @staticmethod
     def _get_file_contents(bucket_name, file_name):
         s3 = boto3.resource('s3')
-        return s3.Object(s3.Bucket(bucket_name), file_name).get()['Body'].read()
+        return s3.Object(bucket_name, file_name).get()['Body'].read()
 
     def _get_rules(self):
         data = yaml.safe_load(self._file_contents)