--- a/app/soc/views/models/base.py	Fri Mar 13 23:11:44 2009 +0000
+++ b/app/soc/views/models/base.py	Fri Mar 13 23:12:15 2009 +0000
@@ -740,6 +740,7 @@
 
     params = params.copy()
     params['export_extension'] = '.csv'
+    params['export_content_type'] = 'text/csv'
     fieldnames = params['csv_fieldnames']
 
     f = StringIO.StringIO()