diff --git a/builder/xenserver/client.go b/builder/xenserver/client.go
index 36016c1..11117a9 100644
--- a/builder/xenserver/client.go
+++ b/builder/xenserver/client.go
@@ -106,6 +106,7 @@ func (client *XenAPIClient) APICall (result *APIResult, method string, params ..
     if result.Status != "Success" {
         fmt.Println("Encountered an API error: ", result.Status)
         fmt.Println(res["ErrorDescription"])
+        log.Fatal(res["ErrorDescription"])
         return errors.New("API Error occurred")
     } else {
         result.Value = res["Value"]