diff --git a/class-auth.php b/class-auth.php
index 420e09d..be0aa7a 100644
--- a/class-auth.php
+++ b/class-auth.php
@@ -128,7 +128,7 @@ public function authenticate_user( $username, $password, $custom_auth = '' ) {
 			 */
 			$user = apply_filters( 'jwt_auth_do_custom_auth', $custom_auth_error, $username, $password, $custom_auth );
 		} else {
-			$user = wp_authenticate( $username, $password );
+			$user = wp_authenticate($username, wp_slash($password));
 		}
 
 		return $user;