diff --git a/src/js/airtable.js b/src/js/airtable.js
index d882999..de1ef4c 100644
--- a/src/js/airtable.js
+++ b/src/js/airtable.js
@@ -51,9 +51,12 @@ function generateDownload(json, type) {
 
   let csvColumns = [];
 
-  const result = json.rows.map((row) => {
+  let result = json.rows.map((row) => {
     const rowData = {};
 
+    if (!row.cellValuesByColumnId)
+      return undefined;
+
     for (let [key, value] of Object.entries(row.cellValuesByColumnId)) {
       const column = columns[key];
 
@@ -89,6 +92,8 @@ function generateDownload(json, type) {
     return rowData;
   });
 
+  result = result.filter(entry => entry !== undefined);
+
   let blob;
   let filename;
   if (type == "json") {