diff --git a/src/app/atom.coffee b/src/app/atom.coffee
index 455382926..43c4d942d 100644
--- a/src/app/atom.coffee
+++ b/src/app/atom.coffee
@@ -7,6 +7,8 @@ LoadTextMatePackagesTask = require 'load-text-mate-packages-task'
 
 messageIdCounter = 1
 originalSendMessageToBrowserProcess = atom.sendMessageToBrowserProcess
+configDirPath = fs.absolute("~/.atom")
+userStylePath = fs.join(configDirPath, "user.css")
 
 _.extend atom,
   exitWhenDone: window.location.params.exitWhenDone
@@ -53,10 +55,15 @@ _.extend atom,
     themeNames = config.get("core.themes") ? ['Atom - Dark', 'IR_Black']
     themeNames = [themeNames] unless _.isArray(themeNames)
     @loadTheme(themeName) for themeName in themeNames
+    @loadUserStyles()
 
   loadTheme: (name) ->
     @loadedThemes.push Theme.load(name)
 
+  loadUserStyles: ->
+    if fs.exists(userStylePath)
+      applyStylesheet(userStylePath, fs.read(userStylePath), 'userTheme')
+
   getAtomThemeStylesheets: ->
     themeNames = config.get("core.themes") ? ['Atom - Dark', 'IR_Black']
     themeNames = [themeNames] unless _.isArray(themeNames)