diff --git a/Python/initconfig.c b/Python/initconfig.c
index 998ceb7bbfa..885525b4184 100644
--- a/Python/initconfig.c
+++ b/Python/initconfig.c
@@ -601,6 +601,8 @@ PyConfig_Clear(PyConfig *config)
     CLEAR(config->run_module);
     CLEAR(config->run_filename);
     CLEAR(config->check_hash_pycs_mode);
+
+    _PyWideStringList_Clear(&config->_orig_argv);
 #undef CLEAR
 }