diff --git a/tests/test_virtual_functions.py b/tests/test_virtual_functions.py
index f7d3bd1e4b..ae19930164 100644
--- a/tests/test_virtual_functions.py
+++ b/tests/test_virtual_functions.py
@@ -251,7 +251,8 @@ def dispatch(self):
                 == 'Tried to call pure virtual function "Base::dispatch"'
             )
 
-            return m.dispatch_issue_go(PyClass1())
+            p = PyClass1()
+            return m.dispatch_issue_go(p)
 
     b = PyClass2()
     assert m.dispatch_issue_go(b) == "Yay.."