diff --git a/src/allmydata/test/web/test_web.py b/src/allmydata/test/web/test_web.py
index ed3f5afb5..e7c309d99 100644
--- a/src/allmydata/test/web/test_web.py
+++ b/src/allmydata/test/web/test_web.py
@@ -1046,6 +1046,7 @@ class Web(WebMixin, WebErrorMixin, testutil.StallMixin, testutil.ReallyEqualMixi
         data = yield self.GET(
             '/',
         )
+        del data
 
     def test_status(self):
         h = self.s.get_history()