diff --git a/lib/matplotlib/tests/test_basic.py b/lib/matplotlib/tests/test_basic.py
index a77ccc87ab3e..415d2de28e6b 100644
--- a/lib/matplotlib/tests/test_basic.py
+++ b/lib/matplotlib/tests/test_basic.py
@@ -16,6 +16,7 @@ def test_override_builtins():
         '__name__',
         '__doc__',
         '__package__',
+        '__loader__',
         'any',
         'all',
         'sum'