--- a/testing/code/test_source.py
+++ b/testing/code/test_source.py
@@ -295,7 +295,7 @@
 
         for comp in py.code.compile, py.code.Source.compile:
             for name in '', None, 'my':
-                yield check, comp, name
+                check(comp, name)
 
     def test_offsetless_synerr(self):
         py.test.raises(SyntaxError, py.code.compile, "lambda a,a: 0", mode='eval')