diff --git a/superset/assets/stylesheets/less/cosmo/bootswatch.less b/superset/assets/stylesheets/less/cosmo/bootswatch.less
index 17629c3547..af95299b39 100644
--- a/superset/assets/stylesheets/less/cosmo/bootswatch.less
+++ b/superset/assets/stylesheets/less/cosmo/bootswatch.less
@@ -80,7 +80,7 @@
   margin-right: 6px;
 }
 
-.nav-tabs .dropdown-toggle.btn .caret,  {
+.nav-tabs .dropdown-toggle.btn .caret  {
   margin-left: -12px;
   margin-top: -10px;
 }