diff --git a/superset/assets/stylesheets/less/cosmo/bootswatch.less b/superset/assets/stylesheets/less/cosmo/bootswatch.less
index 402dd5dcdb24..17629c3547d5 100644
--- a/superset/assets/stylesheets/less/cosmo/bootswatch.less
+++ b/superset/assets/stylesheets/less/cosmo/bootswatch.less
@@ -145,6 +145,10 @@ table,
     a {
       color: #fff;
     }
+
+    .btn-default {
+      color: @gray;
+    }
   }
 }