diff --git a/etg/_core.py b/etg/_core.py
index 50940833..cb368b0c 100644
--- a/etg/_core.py
+++ b/etg/_core.py
@@ -323,11 +323,9 @@ def run():
             method.
 
             If you don't need to get the return value or restart the timer
-            then there is no need to hold a reference to this object.  It will
-            hold a reference to itself while the timer is running (the timer
-            has a reference to :meth:`~wx.CallLater.Notify`) but the cycle will be
-            broken when the timer completes, automatically cleaning up the
-            :class:`wx.CallLater` object.
+            then there is no need to hold a reference to this object. CallLater
+            maintains references to its instances while they are running. When they,
+            the reference is deleted, and the GC is free to collect naturally.
 
             .. seealso::
                 :func:`wx.CallAfter`