diff --git a/javascript/src/lib/utils.js b/javascript/src/lib/utils.js
index b2c686c3..be198127 100644
--- a/javascript/src/lib/utils.js
+++ b/javascript/src/lib/utils.js
@@ -44,7 +44,7 @@ exports.get_data_file = function(name, encoding = 'utf8') {
  */
 exports.get_answer = function(n) {
     for (const line of exports.get_data_file('answers.tsv').split(new RegExp('\\r?\\n'))) {
-        const [id_, type, size, value] = line.split('\t');
+        const [id_, type, _, value] = line.split('\t');
         if (id_ !== n.toString()) {
             continue;
         }