diff --git a/arduino-littlefs-upload-1.1.4.vsix b/arduino-littlefs-upload-1.1.5.vsix
similarity index 94%
rename from arduino-littlefs-upload-1.1.4.vsix
rename to arduino-littlefs-upload-1.1.5.vsix
index 2c425e9..d4facdd 100644
Binary files a/arduino-littlefs-upload-1.1.4.vsix and b/arduino-littlefs-upload-1.1.5.vsix differ
diff --git a/package.json b/package.json
index c68fbcc..ea92989 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "arduino-littlefs-upload",
   "displayName": "arduino-littlefs-upload",
   "description": "Build and uploads LittleFS filesystems for the Arduino-Pico RP2040 core, ESP8266 core or ESP32 core under Arduino IDE 2.2.1 or higher",
-  "version": "1.1.4",
+  "version": "1.1.5",
   "engines": {
     "vscode": "^1.82.0"
   },
diff --git a/src/extension.ts b/src/extension.ts
index 897ed35..e56bb59 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -116,7 +116,7 @@ export function activate(context: vscode.ExtensionContext) {
             }
             case "esp32": {
                 esp32 = true;
-                esp32variant = arduinoContext.fqbn.split(':')[2];
+                esp32variant = arduinoContext.boardDetails.buildProperties['build.mcu'];
                 break;
             }
             default: {