diff --git a/includes/Helpers/AbilityHelper.php b/includes/Helpers/AbilityHelper.php
index bf51d4c..83d2595 100644
--- a/includes/Helpers/AbilityHelper.php
+++ b/includes/Helpers/AbilityHelper.php
@@ -18,15 +18,15 @@ class AbilityHelper {
     public function can(string $action, mixed $subject) : bool {
         $is_destructive = in_array($action, self::DESTRUCTIVE_ACTIONS);
 
-        if (is_a($subject, 'Paste')) {
-            if (($subject->visible == Paste::VISIBILITY_PRIVATE) || $is_destructive) {
+        if (is_a($subject, 'PonePaste\\Models\\Paste')) {
+            if (((int) $subject->visible === Paste::VISIBILITY_PRIVATE) || $is_destructive) {
                 return $this->user !== null && $subject->user_id === $this->user->id;
             }
 
             return true;
         }
 
-        if (is_a($subject, 'User')) {
+        if (is_a($subject, 'PonePaste\\Models\\User')) {
             return !$is_destructive || ($this->user !== null && $subject->id === $this->user->id);
         }
 
diff --git a/theme/bulma/common.php b/theme/bulma/common.php
index 89bc393..409e4f0 100644
--- a/theme/bulma/common.php
+++ b/theme/bulma/common.php
@@ -103,7 +103,7 @@ $flashes = getFlashes();
                                     </span>
                                     <span>Archive</span>
                                 </a>
-                                <a class="button navbar-item mx-2" href="<?= urlForPage('discover') ?>r">
+                                <a class="button navbar-item mx-2" href="<?= urlForPage('discover') ?>">
                                     <span class="icon has-text-info">
                                         <i class="fa fa-compass" aria-hidden="true"></i>
                                     </span>