diff --git a/src/wp-admin/css/login.css b/src/wp-admin/css/login.css
index 3c795ebab5..8a16bb9b7b 100644
--- a/src/wp-admin/css/login.css
+++ b/src/wp-admin/css/login.css
@@ -50,6 +50,7 @@ p {
 	margin-bottom: 20px;
 	background-color: #fff;
 	box-shadow: 0 1px 1px 0 rgba(0, 0, 0, 0.1);
+	word-break: break-all;
 }
 
 .login .success {