diff --git a/src/Clearbooks/Soap/1/0/AccountCode.php b/src/Clearbooks/Soap/1/0/AccountCode.php
index 0b9bb85..02d4e8d 100644
--- a/src/Clearbooks/Soap/1/0/AccountCode.php
+++ b/src/Clearbooks/Soap/1/0/AccountCode.php
@@ -26,6 +26,6 @@ class Clearbooks_Soap_1_0_AccountCode
     public $show_purchases;
 
     /** @var string */
-    public $customAccountCode = "";
+    public $customAccountCode;
 }
 //EOF AccountCode.php