diff --git a/src/personalisation/adapters.py b/src/personalisation/adapters.py
index 048430e..907af69 100644
--- a/src/personalisation/adapters.py
+++ b/src/personalisation/adapters.py
@@ -144,10 +144,10 @@ class SessionSegmentsAdapter(BaseSegmentsAdapter):
         session_segments = self.request.session['segments']
         rules = AbstractBaseRule.__subclasses__()
 
-        # Create a list to store the new requet session segments and
-        # re-apply all persistent segments.
+        # Create a list to store the new request session segments and
+        # re-apply all persistent segments (if they are still enabled).
         new_segments = [segment for segment in session_segments
-                        if segment in persistent_segments]
+                        if persistent_segments.filter(id=segment['id']).exists()]
 
         # Run tests on all remaining enabled segments to verify applicability.
         for segment in enabled_segments:
diff --git a/tests/unit/test_middleware.py b/tests/unit/test_middleware.py
index 26fbc57..e16748d 100644
--- a/tests/unit/test_middleware.py
+++ b/tests/unit/test_middleware.py
@@ -218,7 +218,6 @@ class TestUserSegmenting(object):
         assert any(item['encoded_name'] == 'multiple-queries' for item in client.session['segments'])
 
 
-    @pytest.mark.skip
     def test_persistent_segmenting(self, client):
         segment = SegmentFactory(name='Persistent', persistent=True)
         query_rule = QueryRuleFactory(