diff --git a/public/css/icinga/layout-structure.less b/public/css/icinga/layout-structure.less
index 7d1c415f6..2b4228b5f 100644
--- a/public/css/icinga/layout-structure.less
+++ b/public/css/icinga/layout-structure.less
@@ -389,6 +389,14 @@ html {
   width: 1px;
 }
 
+.clearfix:after {
+  content: ".";
+  visibility: hidden;
+  display: block;
+  height: 0;
+  clear: both;
+}
+
 .multi-commands {
   padding-top: 0em;
   font-size: 0.9em;