diff --git a/direct/src/directutil/MemoryLeakHelpers.py b/direct/src/directutil/MemoryLeakHelpers.py
index 7ec6da0264..4607d05e16 100755
--- a/direct/src/directutil/MemoryLeakHelpers.py
+++ b/direct/src/directutil/MemoryLeakHelpers.py
@@ -4,9 +4,10 @@
 # http://www.python.org/~jeremy/weblog/030410.html
 
 # Before you chase down leaks, make sure you Config:
-# fsm-redefine 0
 # want-dev 0
 
+# You may also want to run pyo-shell so __debug__ is False and assert code is removed.
+
 import gc
 gc.set_debug(gc.DEBUG_LEAK)
 gc.collect()