diff --git a/src/applications/auth/controller/message/PhabricatorAuthMessageViewController.php b/src/applications/auth/controller/message/PhabricatorAuthMessageViewController.php
--- a/src/applications/auth/controller/message/PhabricatorAuthMessageViewController.php
+++ b/src/applications/auth/controller/message/PhabricatorAuthMessageViewController.php
@@ -111,7 +111,7 @@
     }
 
     $message_text = $message->getMessageText();
-    if (strlen($message_text)) {
+    if (phutil_nonempty_string($message_text)) {
       $view->addSectionHeader(
         pht('Message Preview'),
         PHUIPropertyListView::ICON_SUMMARY);
@@ -120,7 +120,7 @@
     }
 
     $default_text = $message_type->getDefaultMessageText();
-    if (strlen($default_text)) {
+    if (phutil_nonempty_string($default_text)) {
       $view->addSectionHeader(
         pht('Default Message'),
         PHUIPropertyListView::ICON_SUMMARY);