diff --git a/Lib/test/test_builtin.py b/Lib/test/test_builtin.py
index 70987dd4881e95..88ece3cd8deacd 100644
--- a/Lib/test/test_builtin.py
+++ b/Lib/test/test_builtin.py
@@ -380,7 +380,7 @@ def f(): """doc"""
             # test both direct compilation and compilation via AST
                 codeobjs = []
                 codeobjs.append(compile(codestr, "<test>", "exec", optimize=optval))
-                tree = ast.parse(codestr)
+                tree = ast.parse(codestr, optimize=optval)
                 codeobjs.append(compile(tree, "<test>", "exec", optimize=optval))
                 for code in codeobjs:
                     ns = {}