diff --git a/python/tests/thread2.py b/python/tests/thread2.py
index 3de62480..f7d2595b 100755
--- a/python/tests/thread2.py
+++ b/python/tests/thread2.py
@@ -9,6 +9,9 @@ from threading import Thread, Lock
 import setup_test
 import libxml2
 
+# Memory debug specific
+libxml2.debugMemory(1)
+
 THREADS_COUNT = 15
 
 failed = 0