diff --git a/includes/service-providers/mailchimp/class-newspack-newsletters-mailchimp.php b/includes/service-providers/mailchimp/class-newspack-newsletters-mailchimp.php
index 08b70c87..3a6532b9 100644
--- a/includes/service-providers/mailchimp/class-newspack-newsletters-mailchimp.php
+++ b/includes/service-providers/mailchimp/class-newspack-newsletters-mailchimp.php
@@ -1426,7 +1426,7 @@ public function validate( $result, $preferred_error = null ) {
 				throw new Exception( esc_html__( 'A Mailchimp error has occurred.', 'newspack-newsletters' ) );
 			}
 		}
-		if ( ! empty( $result['status'] ) && 400 <= (int) $result['status'] ) {
+		if ( ! empty( $result['status'] ) && (int) $result['status'] >= 400  ) {
 			if ( $preferred_error && ! Newspack_Newsletters::debug_mode() ) {
 				if ( ! empty( $result['detail'] ) ) {
 					$preferred_error .= ' ' . $result['detail'];