diff --git a/Programs/_testembed.c b/Programs/_testembed.c
index 542e46968ce..6b43d534030 100644
--- a/Programs/_testembed.c
+++ b/Programs/_testembed.c
@@ -368,6 +368,8 @@ static int test_bpo20891(void)
 
     PyThread_free_lock(lock);
 
+    Py_Finalize();
+
     return 0;
 }