diff --git a/static/config.less b/static/config.less
index 2fc54252b..d38518481 100644
--- a/static/config.less
+++ b/static/config.less
@@ -1,3 +1,5 @@
+@import "bootstrap/less/variables.less";
+
 #config-view {
   height: 100%;
   width: 100%;