diff --git a/Lib/test/test_normalization.py b/Lib/test/test_normalization.py
index 00e66faf002..055b403c015 100644
--- a/Lib/test/test_normalization.py
+++ b/Lib/test/test_normalization.py
@@ -88,6 +88,8 @@ class NormalizationTest(unittest.TestCase):
 
 
 def test_main():
+    # Hit the exception early
+    open_urlresource(TESTDATAURL)
     run_unittest(NormalizationTest)
 
 if __name__ == "__main__":