diff --git a/build/tasks/output-long-paths-task.coffee b/build/tasks/output-long-paths-task.coffee
new file mode 100644
index 000000000..a47660404
--- /dev/null
+++ b/build/tasks/output-long-paths-task.coffee
@@ -0,0 +1,15 @@
+path = require 'path'
+
+module.exports = (grunt) ->
+  grunt.registerTask 'output-long-paths', 'Log long paths in the built application', ->
+    shellAppDir = grunt.config.get('atom.shellAppDir')
+
+    longPaths = []
+    grunt.file.recurse shellAppDir, (absolutePath, rootPath, relativePath, fileName) ->
+      fullPath =  path.join(relativePath, fileName)
+      longPaths.push(fullPath) if fullPath.length >= 200
+
+    longPaths.sort (longPath1, longPath2) -> longPath2.length - longPath1.length
+
+    longPaths.forEach (longPath) ->
+      grunt.log.error "#{longPath.length} character path: #{longPath}"