diff --git a/Lib/test/test_imp.py b/Lib/test/test_imp.py
index 20e5608..65c9f25 100644
--- a/Lib/test/test_imp.py
+++ b/Lib/test/test_imp.py
@@ -211,7 +211,9 @@
         # and importlib couldn't handle C extensions
         example = "_heapq"
         x = imp.find_module(example)
-        self.addCleanup(x[0].close)
+        file_ = x[0]
+        if file_ is not None:
+            self.addCleanup(file_.close)
         mod = imp.load_module(example, *x)
         self.assertEqual(mod.__name__, example)