diff --git a/python/nistoar/pdr/publish/midas3/mdwsgi.py b/python/nistoar/pdr/publish/midas3/mdwsgi.py
index 98f0e99f5..1a5b7b819 100644
--- a/python/nistoar/pdr/publish/midas3/mdwsgi.py
+++ b/python/nistoar/pdr/publish/midas3/mdwsgi.py
@@ -361,7 +361,8 @@ def send_datafile(self, id, filepath):
 
         self.set_response(200, "Data file found")
         self.add_header('Content-Type', mtype)
-        self.add_header('Content-Disposition', os.path.basename(filepath))
+        self.add_header('Content-Disposition',
+                        'inline; filename="%s"' % os.path.basename(filepath)) 
         if xsend:
             self.add_header('X-Accel-Redirect', xsend)
         self.end_headers()