diff --git a/src/PHPMailer.php b/src/PHPMailer.php
index e68585cc..cbdfa30f 100644
--- a/src/PHPMailer.php
+++ b/src/PHPMailer.php
@@ -1453,7 +1453,8 @@ class PHPMailer
                     //Use the current punycode standard (appeared in PHP 7.2)
                     $punycode = idn_to_ascii(
                         $domain,
-                        \IDNA_DEFAULT | \IDNA_USE_STD3_RULES | \IDNA_CHECK_BIDI | \IDNA_CHECK_CONTEXTJ | \IDNA_NONTRANSITIONAL_TO_ASCII,
+                        \IDNA_DEFAULT | \IDNA_USE_STD3_RULES | \IDNA_CHECK_BIDI |
+                            \IDNA_CHECK_CONTEXTJ | \IDNA_NONTRANSITIONAL_TO_ASCII,
                         \INTL_IDNA_VARIANT_UTS46
                     );
                 } elseif (defined('INTL_IDNA_VARIANT_2003')) {