diff --git a/IPython/html/static/style/style.less b/IPython/html/static/style/style.less
index 488c1ef..0f8c37d 100644
--- a/IPython/html/static/style/style.less
+++ b/IPython/html/static/style/style.less
@@ -4,7 +4,6 @@
 *
 */
 @import "../components/bootstrap/less/bootstrap.less";
-@import "../components/bootstrap/less/responsive-utilities.less";
 
 /*!
 *