diff --git a/public/css/icinga/grid.less b/public/css/icinga/grid.less
index c95ebbdaa..c2b70865b 100644
--- a/public/css/icinga/grid.less
+++ b/public/css/icinga/grid.less
@@ -7,6 +7,10 @@
   .pull-left();
 }
 
+.col-1-2 {
+  width: 50%;
+}
+
 .col-1-3 {
   width: 33.33%;
 }