diff --git a/Programs/_testembed.c b/Programs/_testembed.c
index b7d4675a955a50..34c44120a20129 100644
--- a/Programs/_testembed.c
+++ b/Programs/_testembed.c
@@ -290,6 +290,8 @@ static int test_bpo20891(void)
 
     PyThread_free_lock(lock);
 
+    Py_Finalize();
+
     return 0;
 }