diff --git a/src/app/root-view.coffee b/src/app/root-view.coffee
index 4ef9662b8..558143889 100644
--- a/src/app/root-view.coffee
+++ b/src/app/root-view.coffee
@@ -34,7 +34,6 @@ class RootView extends View
   title: null
 
   initialize: ->
-    @addClass('dev-mode') if atom.devMode
     @command 'toggle-dev-tools', => atom.toggleDevTools()
     @on 'focus', (e) => @handleFocus(e)
     @subscribe $(window), 'focus', (e) =>
diff --git a/static/atom.css b/static/atom.css
index f029ddc77..f16aa95be 100644
--- a/static/atom.css
+++ b/static/atom.css
@@ -10,14 +10,6 @@ html, body {
   position: relative;
 }
 
-#root-view.dev-mode:before {
-  content: "";
-  height: 3px;
-  display: block;
-  background-image: -webkit-linear-gradient(#ffc833, #ebac00);
-  border-bottom: 1px solid #000;
-}
-
 #root-view #horizontal {
   display: -webkit-flex;
   height: 100%;