diff --git a/browser/node.py b/browser/node.py
index a49a350..335deb6 100644
--- a/browser/node.py
+++ b/browser/node.py
@@ -440,7 +440,7 @@ class NodeView(BaseView):
     def targetView(self, name='index.html', methodName='show'):
         if name == 'index.html':    # only when called for default view
             tv = self.viewAnnotations.get('targetView')
-            if tv is not None:
+            if tv is not None and callable(tv):
                 return tv()
         if '?' in name:
             name, params = name.split('?', 1)