diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py
index d839893d2c657e..d2c45e61a80802 100644
--- a/Lib/test/test_sys.py
+++ b/Lib/test/test_sys.py
@@ -1621,9 +1621,9 @@ def func():
             return sys._getframe()
         x = func()
         if support.Py_GIL_DISABLED:
-            INTERPRETER_FRAME = '10PhcP'
+            INTERPRETER_FRAME = '10PhccP'
         else:
-            INTERPRETER_FRAME = '9PhcP'
+            INTERPRETER_FRAME = '9PhcccP'
         check(x, size('3PiccPP' + INTERPRETER_FRAME + 'P'))
         # function
         def func(): pass