diff --git a/public/css/icinga/login.less b/public/css/icinga/login.less
index 9a91a87ef..1da2690ed 100644
--- a/public/css/icinga/login.less
+++ b/public/css/icinga/login.less
@@ -55,6 +55,7 @@
       .rounded-corners(3px);
       background-color: @body-bg-color;
       border: none;
+      border-radius: 0;
       color: @icinga-blue;
       padding-bottom: 3px;
     }