diff --git a/etg/propgridiface.py b/etg/propgridiface.py
index d0025086..847a0e05 100644
--- a/etg/propgridiface.py
+++ b/etg/propgridiface.py
@@ -38,6 +38,7 @@ def run():
 
 
     c = module.find('wxPropertyGridInterface')
+    c.abstract = True
     for m in c.findAll('GetIterator'):
         if m.type == 'wxPropertyGridConstIterator':
             m.ignore()