diff --git a/wxPython/src/_timer.i b/wxPython/src/_timer.i
index 37461f1e50..69ea2a2674 100644
--- a/wxPython/src/_timer.i
+++ b/wxPython/src/_timer.i
@@ -116,7 +116,7 @@ public:
     int GetId() const;
 
     %pythoncode {
-        def Destroy():
+        def Destroy(self):
             """NO-OP: Timers must be destroyed by normal refrence counting"""
             pass
     }