diff --git a/app/assets/stylesheets/common/base/discourse.scss b/app/assets/stylesheets/common/base/discourse.scss
index 941fbbf7fdf..a217ec48b75 100644
--- a/app/assets/stylesheets/common/base/discourse.scss
+++ b/app/assets/stylesheets/common/base/discourse.scss
@@ -41,6 +41,8 @@ body {
   background-size: cover;
   min-height: 100%;
 
+  @include clearfix;
+
   button.ok {
     background: $success;
     color: $secondary;