diff --git a/build/Gruntfile.coffee b/build/Gruntfile.coffee
index b248eda2e..653e1e268 100644
--- a/build/Gruntfile.coffee
+++ b/build/Gruntfile.coffee
@@ -296,7 +296,9 @@ module.exports = (grunt) ->
     ciTasks.push('create-windows-installer:installer')
     ciTasks.push('codesign:installer') if process.env.JANKY_SIGNTOOL
     ciTasks.push('codesign:cleanup')
-  ciTasks.push('publish-build') unless process.env.CI
+
+  if process.env.ATOM_PUBLISH_REPO or not process.env.CI
+    ciTasks.push('publish-build')
 
   grunt.registerTask('ci', ciTasks)
 
diff --git a/build/tasks/publish-build-task.coffee b/build/tasks/publish-build-task.coffee
index 2802f827d..27f36aaeb 100644
--- a/build/tasks/publish-build-task.coffee
+++ b/build/tasks/publish-build-task.coffee
@@ -11,7 +11,7 @@ AWS = require 'aws-sdk'
 grunt = null
 
 token = process.env.ATOM_ACCESS_TOKEN
-repo = process.env.ATOM_REPO ? 'atom/atom'
+repo = process.env.ATOM_PUBLISH_REPO ? 'atom/atom'
 defaultHeaders =
   Authorization: "token #{token}"
   'User-Agent': 'Atom'