diff --git a/app/Entities/Book.php b/app/Entities/Book.php
index e722c4b10..77cacf632 100644
--- a/app/Entities/Book.php
+++ b/app/Entities/Book.php
@@ -101,7 +101,7 @@ class Book extends Entity
      * @param int $length
      * @return string
      */
-    public function getExcerpt($length = 100)
+    public function getExcerpt(int $length = 100)
     {
         $description = $this->description;
         return strlen($description) > $length ? substr($description, 0, $length-3) . '...' : $description;
diff --git a/app/Entities/Bookshelf.php b/app/Entities/Bookshelf.php
index d6a3cf0ef..8f2cdf8ae 100644
--- a/app/Entities/Bookshelf.php
+++ b/app/Entities/Bookshelf.php
@@ -78,7 +78,7 @@ class Bookshelf extends Entity
      * @param int $length
      * @return string
      */
-    public function getExcerpt($length = 100)
+    public function getExcerpt(int $length = 100)
     {
         $description = $this->description;
         return strlen($description) > $length ? substr($description, 0, $length-3) . '...' : $description;
diff --git a/app/Entities/Entity.php b/app/Entities/Entity.php
index d648f68e4..482d21766 100644
--- a/app/Entities/Entity.php
+++ b/app/Entities/Entity.php
@@ -234,7 +234,7 @@ class Entity extends Ownable
         if (mb_strlen($text) > $length) {
             $text = mb_substr($text, 0, $length-3) . '...';
         }
-        return  trim($text);
+        return trim($text);
     }
 
     /**