diff --git a/app/models/SOAP.php b/app/models/SOAP.php
index 459eafa353d6bb55b7430bb4471e4322798a1e02..c9de818e612e8517f7868f64cada4fd947d2401d 100644
--- a/app/models/SOAP.php
+++ b/app/models/SOAP.php
@@ -14,7 +14,7 @@ class SOAP{
         $this->streamContext = stream_context_create(
             array(
                 'http' => array(
-                    'header' => "API-KEY: ".SOAP_KEY
+                    'header' => "X-API-KEY: ".SOAP_KEY
                 )
             )
         );