diff --git a/pkg/utils/xml.go b/pkg/utils/xml.go
index 664012a..411b82e 100644
--- a/pkg/utils/xml.go
+++ b/pkg/utils/xml.go
@@ -55,7 +55,7 @@ func XMLMarshal(obj interface{}, charset string) ([]byte, error) {
 				}
 
 				writer := transform.NewWriter(xmlBytes, t)
-				writer.Write([]byte(xmlStr))
+				_, _ = writer.Write([]byte(xmlStr))
 				_ = writer.Close()
 			}
 		}()
diff --git a/test/client_test.go b/test/client_test.go
index b552e71..34b5e80 100644
--- a/test/client_test.go
+++ b/test/client_test.go
@@ -18,7 +18,8 @@ func TestClient(t *testing.T) {
 	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
 
 	ua, _ := sipgo.NewUA(
-		sipgo.WithUserAgentHostname("44050100002000000002@10.10.10.20:5099"))
+		sipgo.WithUserAgent("44050100002000000002"),
+		sipgo.WithUserAgentHostname("10.10.10.20:5099"))
 
 	srv, _ := sipgo.NewServer(ua) // Creating server handle