diff --git a/data-discovery/config/formatresponsefilter.properties b/data-discovery/config/formatresponsefilter.properties
index 1d03f40385f33730b30f870330442109e27fe150..f36192baf46147621eb78793a51c985726e89a48 100644
--- a/data-discovery/config/formatresponsefilter.properties
+++ b/data-discovery/config/formatresponsefilter.properties
@@ -1,4 +1,7 @@
 
+response_format=application/x-votable+xml
+# response_format=application/x-vlkb+xml
+
 # used to retrieve extraCards to add to FITS_header (VLKB-only)
 surveys_metadata_abs_pathname=/srv/vlkb/surveys/survey_populate.csv