diff --git a/src/PaymentMethods/PaymentFieldsStrategies/In3FieldsStrategy.php b/src/PaymentMethods/PaymentFieldsStrategies/In3FieldsStrategy.php
index 74d977f8..e8797705 100644
--- a/src/PaymentMethods/PaymentFieldsStrategies/In3FieldsStrategy.php
+++ b/src/PaymentMethods/PaymentFieldsStrategies/In3FieldsStrategy.php
@@ -50,7 +50,7 @@ protected function getOrderIdOnPayForOrderPage()
 
     protected function dateOfBirth($birthValue)
     {
-        $birthValue = $birthValue?: '';
+        $birthValue = $birthValue ?: '';
         ?>
         <p class="form-row form-row-wide" id="billing_birthdate_field">
             <label for="<?php echo esc_attr(self::FIELD_BIRTHDATE); ?>" class=""><?php echo esc_html__('Birthdate', 'mollie-payments-for-woocommerce'); ?>
diff --git a/src/PaymentMethods/PaymentFieldsStrategies/RivertyFieldsStrategy.php b/src/PaymentMethods/PaymentFieldsStrategies/RivertyFieldsStrategy.php
index e587c072..6eb042db 100644
--- a/src/PaymentMethods/PaymentFieldsStrategies/RivertyFieldsStrategy.php
+++ b/src/PaymentMethods/PaymentFieldsStrategies/RivertyFieldsStrategy.php
@@ -23,7 +23,6 @@ public function execute($gateway, $dataHelper)
             $order = $this->getOrderIdOnPayForOrderPage();
             $phoneValue = $order->get_billing_phone();
             $birthValue = $order->get_meta('billing_birthdate');
-
         }
 
         if (is_checkout() && !is_checkout_pay_page() && !$isPhoneRequired) {
@@ -51,7 +50,7 @@ protected function getOrderIdOnPayForOrderPage()
 
     protected function dateOfBirth($birthValue)
     {
-        $birthValue = $birthValue?: '';
+        $birthValue = $birthValue ?: '';
         ?>
         <p class="form-row form-row-wide" id="billing_birthdate_field">
             <label for="<?php echo esc_attr(self::FIELD_BIRTHDATE); ?>" class=""><?php echo esc_html__('Birthdate', 'mollie-payments-for-woocommerce'); ?>