diff --git a/specs/test_guard.py b/specs/test_guard.py
index ae76044..12b906d 100644
--- a/specs/test_guard.py
+++ b/specs/test_guard.py
@@ -2,10 +2,10 @@
 
 import unittest
 
-import os
 import json
 import tempfile
 
+from werkzeug import __version__
 from werkzeug.test import Client
 from werkzeug.wrappers import Response
 
@@ -15,6 +15,12 @@ from isso.utils import http
 from fixtures import curl, FakeIP
 http.curl = curl
 
+if __version__.startswith("0.8"):
+    class Response(Response):
+
+        def get_data(self, as_text=False):
+            return self.data.decode("utf-8")
+
 
 class TestGuard(unittest.TestCase):