diff --git a/Lib/test/test_sysconfig.py b/Lib/test/test_sysconfig.py
index d30f69ded6643a..7af3144d69197e 100644
--- a/Lib/test/test_sysconfig.py
+++ b/Lib/test/test_sysconfig.py
@@ -712,8 +712,8 @@ def test_sysconfigdata_json(self):
             ignore_keys |= {'prefix', 'exec_prefix', 'base', 'platbase', 'installed_base', 'installed_platbase'}
 
         for key in ignore_keys:
-            json_config_vars.pop(key)
-            system_config_vars.pop(key)
+            json_config_vars.pop(key, None)
+            system_config_vars.pop(key, None)
 
         self.assertEqual(system_config_vars, json_config_vars)