diff --git a/app/assets/javascripts/application.js.coffee b/app/assets/javascripts/application.js.coffee
index 606f6afdba..6bc24cf759 100644
--- a/app/assets/javascripts/application.js.coffee
+++ b/app/assets/javascripts/application.js.coffee
@@ -26,6 +26,7 @@
 #= require branch-graph
 #= require highlight.pack
 #= require ace/ace
+#= require ace/ext-searchbox
 #= require d3
 #= require underscore
 #= require nprogress
diff --git a/app/views/projects/edit_tree/show.html.haml b/app/views/projects/edit_tree/show.html.haml
index 05050e7df7..62798b51d8 100644
--- a/app/views/projects/edit_tree/show.html.haml
+++ b/app/views/projects/edit_tree/show.html.haml
@@ -41,6 +41,7 @@
 
 :javascript
   ace.config.set("modePath", gon.relative_url_root + "#{Gitlab::Application.config.assets.prefix}/ace")
+  ace.config.loadModule("ace/ext/searchbox");
   var ace_mode = "#{@blob.language.try(:ace_mode)}";
   var editor = ace.edit("editor");
   editor.setValue("#{escape_javascript(@blob.data)}");