diff --git a/lib/ace/css/editor.css b/lib/ace/css/editor.css
index 06bc87b9..075c317e 100644
--- a/lib/ace/css/editor.css
+++ b/lib/ace/css/editor.css
@@ -123,6 +123,7 @@
 
 .ace_marker-layer {
     cursor: text;
+    pointer-events: none;
 }
 
 .ace_marker-layer .ace_step {