diff --git a/Lib/test/test_marshal.py b/Lib/test/test_marshal.py
index 5377224..9237af0 100644
--- a/Lib/test/test_marshal.py
+++ b/Lib/test/test_marshal.py
@@ -39,3 +39,6 @@
             base = 0
         else:
             base >>= 1
+
+# Simple-minded check for SF 588452: Debug build crashes
+marshal.dumps([128] * 1000)