diff --git a/lib/ace/css/editor.css b/lib/ace/css/editor.css
index af1cecf3..b38dc453 100644
--- a/lib/ace/css/editor.css
+++ b/lib/ace/css/editor.css
@@ -128,6 +128,7 @@
 .ace_gutter .ace_layer {
     position: relative;
     min-width: 40px;
+    width: auto;
     text-align: right;
     pointer-events: auto;
 }