diff --git a/stylesheets/editor.less b/stylesheets/editor.less
index a2e97d1..81b29e7 100644
--- a/stylesheets/editor.less
+++ b/stylesheets/editor.less
@@ -13,7 +13,7 @@
   .selection .region { background-color: lighten(@input-background-color, 10%); }
 }
 
-.editor {
+.editor, .editor .gutter {
   background-color: @app-background-color;
 }