diff --git a/app/assets/stylesheets/partials/_tree_view.scss b/app/assets/stylesheets/partials/_tree_view.scss
index 7ddac3556..8da1a3dd9 100644
--- a/app/assets/stylesheets/partials/_tree_view.scss
+++ b/app/assets/stylesheets/partials/_tree_view.scss
@@ -58,6 +58,7 @@
         border: 0;
         display: inline-block;
         padding: 0;
+        width: 100%;
       }
     }