diff --git a/src/SirenPHP/Entity.php b/src/SirenPHP/Entity.php
index 84e2462..851b4a8 100644
--- a/src/SirenPHP/Entity.php
+++ b/src/SirenPHP/Entity.php
@@ -22,7 +22,7 @@ public function setProperties(array $properties) {
     public function appendEntity(array $rel, BaseEntity $entity) {
         foreach ($rel as $r) {
             if (!is_string($r)) {
-                throw new \InvalidArgumentExcpetion('rel must be an array of strings')
+                throw new \InvalidArgumentExcpetion('rel must be an array of strings');
             }
         }
         $copyEntity = clone $entity;