diff --git a/script/lib/dependencies-fingerprint.js b/script/lib/dependencies-fingerprint.js
index 650efd99b..52b5d170a 100644
--- a/script/lib/dependencies-fingerprint.js
+++ b/script/lib/dependencies-fingerprint.js
@@ -22,7 +22,7 @@ module.exports = {
     // Include the electron minor version in the fingerprint since that changing requires a re-install
     const electronVersion = CONFIG.appMetadata.electronVersion.replace(/\.\d+$/, '')
     const apmVersion = CONFIG.apmMetadata.dependencies['atom-package-manager']
-    const body = electronVersion + apmVersion + process.platform + process.version
+    const body = electronVersion + apmVersion + process.platform + process.version + process.arch
     return crypto.createHash('sha1').update(body).digest('hex')
   }
 }