diff --git a/src/TagRepository.php b/src/TagRepository.php
index d2b0cbaf..184081ce 100644
--- a/src/TagRepository.php
+++ b/src/TagRepository.php
@@ -63,11 +63,11 @@ public function all(User $user = null)
      * @param User|null $user
      * @return int
      */
-    public function getIdForSlug($slug, User $user = null)
+    public function getIdForSlug($slug, User $user = null) : ?int
     {
-        $query = Tag::where('slug', 'like', $slug);
+        $query = Tag::where('slug', $slug);
 
-        return $this->scopeVisibleTo($query, $user)->pluck('id');
+        return $this->scopeVisibleTo($query, $user)->value('id');
     }
 
     /**