diff --git a/webassets/js/spots.js b/webassets/js/spots.js
index 8dff7e4..4e14491 100644
--- a/webassets/js/spots.js
+++ b/webassets/js/spots.js
@@ -102,7 +102,7 @@ function updateTable() {
         // Format sig_refs
         var sig_refs = "";
         if (s["sig_refs"]) {
-            sig_refs = a["sig_refs"].map(a => `<span class='nowrap'>${a}</span>`).join(", ");
+            sig_refs = s["sig_refs"].map(s => `<span class='nowrap'>${s}</span>`).join(", ");
         }
 
         // Format DE flag