1 files changed, 4 insertions, 2 deletions
diff --git a/tests/storage/test_base.py b/tests/storage/test_base.py
index 64abe8cc49..40ba652248 100644
--- a/tests/storage/test_base.py
+++ b/tests/storage/test_base.py
@@ -197,8 +197,10 @@ class SQLBaseStoreTestCase(unittest.TestCase):
     def test_delete_one(self):
         self.mock_txn.rowcount = 1
 
-        yield self.datastore.db_pool.simple_delete_one(
-            table="tablename", keyvalues={"keycol": "Go away"}
+        yield defer.ensureDeferred(
+            self.datastore.db_pool.simple_delete_one(
+                table="tablename", keyvalues={"keycol": "Go away"}
+            )
         )
 
         self.mock_txn.execute.assert_called_with(