the names attribute of Global is not a node
diff --git a/Lib/compiler/ast.py b/Lib/compiler/ast.py
index e5183fa..53dc410 100644
--- a/Lib/compiler/ast.py
+++ b/Lib/compiler/ast.py
@@ -146,7 +146,7 @@
         return self.names,
 
     def getChildNodes(self):
-        return self.names,
+        return ()
 
     def __repr__(self):
         return "Global(%s)" % (repr(self.names),)