diff --git a/script/lib/create-windows-installer.js b/script/lib/create-windows-installer.js
index 7de22833b..9c1657bfa 100644
--- a/script/lib/create-windows-installer.js
+++ b/script/lib/create-windows-installer.js
@@ -28,19 +28,19 @@ module.exports = function (packagedAppPath, codeSign) {
   }
 
   const certPath = path.join(os.tmpdir(), 'win.p12')
-  const signing = codeSign && process.env.WIN_P12KEY_URL
+  const signing = codeSign && process.env.ATOM_WIN_CODE_SIGNING_CERT_DOWNLOAD_URL
 
   if (signing) {
-    downloadFileFromGithub(process.env.WIN_P12KEY_URL, certPath)
+    downloadFileFromGithub(process.env.ATOM_WIN_CODE_SIGNING_CERT_DOWNLOAD_URL, certPath)
     var signParams = []
     signParams.push(`/f ${certPath}`) // Signing cert file
-    signParams.push(`/p ${process.env.WIN_P12KEY_PASSWORD}`) // Signing cert password
+    signParams.push(`/p ${process.env.ATOM_WIN_CODE_SIGNING_CERT_PASSWORD}`) // Signing cert password
     signParams.push('/fd sha256') // File digest algorithm
     signParams.push('/tr http://timestamp.digicert.com') // Time stamp server
     signParams.push('/td sha256') // Times stamp algorithm
     options.signWithParams = signParams.join(' ')
   } else {
-    console.log('Skipping code-signing. Specify the --code-sign option and provide a WIN_P12KEY_URL environment variable to perform code-signing'.gray)
+    console.log('Skipping code-signing. Specify the --code-sign option and provide a ATOM_WIN_CODE_SIGNING_CERT_DOWNLOAD_URL environment variable to perform code-signing'.gray)
   }
 
   const cleanUp = function () {