diff --git a/inc/class-wp-saml-auth.php b/inc/class-wp-saml-auth.php
index 369f48a..8cbf06e 100644
--- a/inc/class-wp-saml-auth.php
+++ b/inc/class-wp-saml-auth.php
@@ -237,7 +237,7 @@ public function filter_authenticate( $user, $username, $password ) { // phpcs:ig
 		$permit_wp_login = self::get_option( 'permit_wp_login' );
 		if (is_a( $user, 'WP_User' )) {
 
-			if ( ! $permit_wp_login ) {
+			if (!$permit_wp_login) {
 				$user = $this->do_saml_authentication();
 			}