diff --git a/buglink/buglink.php b/buglink/buglink.php
index 973d08ed..517c33e2 100644
--- a/buglink/buglink.php
+++ b/buglink/buglink.php
@@ -15,7 +15,7 @@ function buglink_install()
 	Hook::register('page_end', 'addon/buglink/buglink.php', 'buglink_active');
 }
 
-function buglink_active(App $a, array &$b)
+function buglink_active(App $a, string &$b)
 {
 	$b .= '<div id="buglink_wrapper" style="position: fixed; bottom: 5px; left: 5px;"><a href="https://github.com/friendica/friendica/issues" target="_blank" rel="noopener noreferrer" title="' . DI::l10n()->t('Report Bug') . '"><img src="addon/buglink/bug-x.gif" alt="' . DI::l10n()->t('Report Bug') . '" /></a></div>';
 }