diff --git a/lib/ace/theme/twilight.js b/lib/ace/theme/twilight.js
index 600ba519..2fe50e40 100644
--- a/lib/ace/theme/twilight.js
+++ b/lib/ace/theme/twilight.js
@@ -89,6 +89,9 @@ define(function(require, exports, module) {
 .ace-twilight.normal-mode .ace_cursor.ace_overwrite {\
   border: 1px solid #FFE300;\
   background: #766B13;\
+}\
+.ace-twilight.normal-mode .ace_cursor-layer {\
+  z-index: 0;\
 }\
  \
 .ace-twilight .ace_marker-layer .ace_selection {\