diff --git a/src/public/app/services/attribute_renderer.js b/src/public/app/services/attribute_renderer.ts
similarity index 95%
rename from src/public/app/services/attribute_renderer.js
rename to src/public/app/services/attribute_renderer.ts
index 8916665a3..da620f365 100644
--- a/src/public/app/services/attribute_renderer.js
+++ b/src/public/app/services/attribute_renderer.ts
@@ -20,7 +20,11 @@ async function renderAttribute(attribute, renderIsInheritable) {
         // when the relation has just been created, then it might not have a value
         if (attribute.value) {
             $attr.append(document.createTextNode(`~${attribute.name}${isInheritable}=`));
-            $attr.append(await createLink(attribute.value));
+
+            const link = await createLink(attribute.value);
+            if (link) {
+                $attr.append(link);
+            }
         }
     } else {
         ws.logError(`Unknown attr type: ${attribute.type}`);