diff --git a/tests/messages/test_catalog.py b/tests/messages/test_catalog.py
index da8ad5577..21c5447e7 100644
--- a/tests/messages/test_catalog.py
+++ b/tests/messages/test_catalog.py
@@ -455,7 +455,7 @@ def test_catalog_update():
     assert len(cat) == 3
 
     msg1 = cat['green']
-    msg1.string
+    assert msg1.string
     assert msg1.locations == [('main.py', 99)]
 
     msg2 = cat['blue']
diff --git a/tests/test_support.py b/tests/test_support.py
index 493d55151..92188a4cb 100644
--- a/tests/test_support.py
+++ b/tests/test_support.py
@@ -291,7 +291,7 @@ def raise_attribute_error():
 
         proxy = support.LazyProxy(raise_attribute_error)
         with pytest.raises(AttributeError) as exception:
-            proxy.value
+            _ = proxy.value
 
         assert str(exception.value) == 'message'