diff --git a/tests/test_known_bugs.py b/tests/test_known_bugs.py
index 5454cae..e912339 100644
--- a/tests/test_known_bugs.py
+++ b/tests/test_known_bugs.py
@@ -9,7 +9,7 @@
 
 class TestKnownBugsSuite(unittest.TestCase):
 
-    # @unittest.skip
+    @unittest.skip
     def test_array_substitution(self):
         # [!10] should eval to [:! 10] but it doesn't
         klong = KlongInterpreter()