diff --git a/expert/browser/report.py b/expert/browser/report.py
index 7c62e76..7f7ad2a 100755
--- a/expert/browser/report.py
+++ b/expert/browser/report.py
@@ -152,7 +152,7 @@ class ResultsView(NodeView):
     def displayedColumns(self):
         return self.reportInstance.getActiveOutputFields()
 
-    def getColumnRenderer(self, col):
+    def getColumnRenderer(self, col, name=None):
         return self.result_macros[col.renderer]
 
 
@@ -240,7 +240,7 @@ class ResultsConceptView(ConceptView):
     def displayedColumns(self):
         return self.reportInstance.getActiveOutputFields()
 
-    def getColumnRenderer(self, col):
+    def getColumnRenderer(self, col, name=None):
         return self.result_macros[col.renderer]
 
     @Lazy