diff --git a/src/infrastructure/customfield/standard/PhabricatorStandardCustomFieldLink.php b/src/infrastructure/customfield/standard/PhabricatorStandardCustomFieldLink.php
--- a/src/infrastructure/customfield/standard/PhabricatorStandardCustomFieldLink.php
+++ b/src/infrastructure/customfield/standard/PhabricatorStandardCustomFieldLink.php
@@ -21,7 +21,7 @@
   public function renderPropertyViewValue(array $handles) {
     $value = $this->getFieldValue();
 
-    if (!strlen($value)) {
+    if (!phutil_nonempty_string($value)) {
       return null;
     }