diff --git a/modules/ordini/src/Ordine.php b/modules/ordini/src/Ordine.php
index b2dfb35b0..94aad8288 100755
--- a/modules/ordini/src/Ordine.php
+++ b/modules/ordini/src/Ordine.php
@@ -258,7 +258,7 @@ class Ordine extends Document
 
     public function getReferenceNumber()
     {
-        return $this->numero_esterno ?: $this->numero;
+        return $this->numero_cliente ?: ($this->numero_esterno ?: $this->numero);
     }
 
     public function getReferenceDate()