diff --git a/testsuite/E30not.py b/testsuite/E30not.py
index 00bee957..6303b3b2 100644
--- a/testsuite/E30not.py
+++ b/testsuite/E30not.py
@@ -158,3 +158,7 @@ class Bar(object):
 #: Okay
 defaults = {}
 defaults.update({})
+#: Okay
+def foo(x):
+    classification = x
+    definitely = not classification