diff --git a/src/CXml/Model/Message/QuoteMessage.php b/src/CXml/Model/Message/QuoteMessage.php
index 6ea84d7..52c4d14 100644
--- a/src/CXml/Model/Message/QuoteMessage.php
+++ b/src/CXml/Model/Message/QuoteMessage.php
@@ -39,8 +39,15 @@ public function getQuoteMessageHeader(): QuoteMessageHeader
         return $this->quoteMessageHeader;
     }
 
-    public function getQuoteMessageItems(): array
+    public function getItems(): array
     {
         return $this->quoteMessageItems;
     }
+
+    public function addItem(ItemIn $quoteMessageItem): self
+    {
+        $this->quoteMessageItems[] = $quoteMessageItem;
+
+        return $this;
+    }
 }