diff --git a/site/gatsby-site/src/components/discover/CsvExport.js b/site/gatsby-site/src/components/discover/CsvExport.js
index 437516dbe0..3525f8f443 100644
--- a/site/gatsby-site/src/components/discover/CsvExport.js
+++ b/site/gatsby-site/src/components/discover/CsvExport.js
@@ -13,10 +13,10 @@ const convertData = (hits) => {
     'incident id': hit.incident_id,
     'report number': hit.report_number,
     title: hit.title,
-    'date published': format(fromUnixTime(hit.epoch_date_published), 'yyyy-MM-dd'),
-    'date submitted': format(fromUnixTime(hit.epoch_date_submitted), 'yyyy-MM-dd'),
-    'date modified': format(fromUnixTime(hit.epoch_date_modified), 'yyyy-MM-dd'),
-    'date downloaded': format(fromUnixTime(hit.epoch_date_downloaded), 'yyyy-MM-dd'),
+    'date published': format(fromUnixTime(hit.epoch_date_published ?? 0), 'yyyy-MM-dd'),
+    'date submitted': format(fromUnixTime(hit.epoch_date_submitted ?? 0), 'yyyy-MM-dd'),
+    'date modified': format(fromUnixTime(hit.epoch_date_modified ?? 0), 'yyyy-MM-dd'),
+    'date downloaded': format(fromUnixTime(hit.epoch_date_downloaded ?? 0), 'yyyy-MM-dd'),
     url: hit.url,
     'source domain': hit.source_domain,
     language: hit.language,