gistfile1.diff

diff --git a/go/apps/http_api/tests/test_vumi_app.py b/go/apps/http_api/tests/test_vumi_app.py
index f87deaa..ff8e385 100644
--- a/go/apps/http_api/tests/test_vumi_app.py
+++ b/go/apps/http_api/tests/test_vumi_app.py
@@ -327,13 +327,13 @@ class StreamingHTTPWorkerTestCase(AppWorkerTestCase):
         url = '%s/%s/metrics.json' % (self.url, self.conversation.key)
         response = yield http_request_full(
             url, json.dumps(metric_data), self.auth_headers, method='PUT')
- 
+
         self.assertEqual(response.code, http.OK)
 
         [metric1, metric2] = self.app.metrics._metrics
-        self.assertEqual(metric1.name, '%s%s.stores.%s.vumi.test.v1' % (
-            self.config['metrics_prefix'], self.account.key,
-            'metrics_store'))
+        self.assertEqual(
+            metric1.name,
+            '%s.stores.%s.vumi.test.v1' % (self.account.key, 'metrics_store'))
         self.assertEqual(metric1.aggs, ('sum',))
 
     @inlineCallbacks

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