diff --git a/resources/sass/_buttons.scss b/resources/sass/_buttons.scss
index bd7609052..850443d9a 100644
--- a/resources/sass/_buttons.scss
+++ b/resources/sass/_buttons.scss
@@ -117,6 +117,7 @@ button {
   align-items: center;
   padding: $-s $-m;
   padding-bottom: ($-s - 2px);
+  width: 100%;
   svg {
     display: inline-block;
     width: 24px;
diff --git a/resources/views/auth/forms/login/saml2.blade.php b/resources/views/auth/forms/login/saml2.blade.php
index 7d6595894..1afd2d9bb 100644
--- a/resources/views/auth/forms/login/saml2.blade.php
+++ b/resources/views/auth/forms/login/saml2.blade.php
@@ -2,7 +2,7 @@
     {!! csrf_field() !!}
 
     <div>
-        <button id="saml-login" class="button outline block svg">
+        <button id="saml-login" class="button outline svg">
             @icon('saml2')
             <span>{{ trans('auth.log_in_with', ['socialDriver' => config('saml2.name')]) }}</span>
         </button>