diff --git a/package.json b/package.json
index b697fead..5f937a34 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "arduino-create-agent-js-client",
-  "version": "2.4.0",
+  "version": "2.4.1",
   "description": "JS module providing discovery of the Arduino Create Plugin and communication with it",
   "main": "lib/index.js",
   "module": "es/index.js",
diff --git a/src/firmware-updater.js b/src/firmware-updater.js
index fb3b821c..0aae219b 100644
--- a/src/firmware-updater.js
+++ b/src/firmware-updater.js
@@ -209,7 +209,7 @@ export default class FirmwareUpdater {
           hex: '',
           extra: {
             auth: {
-              password: `${this.loaderPath} -firmware ${this.firmwareVersionData.Path} ${addresses}`,
+              password: `"${this.loaderPath}" -firmware "${this.firmwareVersionData.Path}" ${addresses}`,
             },
           },
           signature: isUsingAvrdude ? signaturesEnum.UPLOAD_FIRMWARE_AVRDUDE : signaturesEnum.UPLOAD_FIRMWARE_BOSSAC,