diff --git a/src/VCardsCollection.php b/src/VCardsCollection.php
index be67c7a..0556cd3 100644
--- a/src/VCardsCollection.php
+++ b/src/VCardsCollection.php
@@ -52,12 +52,13 @@ public function first(): ?AbstractVCard
         return $this->vCards[0] ?? null;
     }
 
-    public function __toString() :string
+    public function __toString(): string
     {
         $collectionString = '';
-        foreach($this->vCards as $vCard){
+        foreach ($this->vCards as $vCard) {
             $collectionString .= (string) $vCard;
         }
+
         return $collectionString;
     }