diff --git a/src/usbinstall.desktop b/src/usbinstall.desktop
index f3187dd..7919e00 100644
--- a/src/usbinstall.desktop
+++ b/src/usbinstall.desktop
@@ -8,6 +8,3 @@ Icon=mamba
 Terminal=0
 Type=Application
 Categories=X-openmamba;
-X-KDE-RootOnly=true
-X-KDE-SubstituteUID=true
-X-KDE-Username=root
diff --git a/src/usbinstall.py b/src/usbinstall.py
index 99e5d8e..4b74c66 100755
--- a/src/usbinstall.py
+++ b/src/usbinstall.py
@@ -368,8 +368,7 @@ def step4():
 	# Show the progressBar
 	window.p_install.show()
 	dbus_start()
-	# NON FUNZIONA...
-	process_sh = Popen(["sudo", "/usr/bin/usbinstall.sh", path_dev, path_cpio, path_iso, "-y"], env={"DBUS_USBINSTALL": "1"})
+	process_sh = Popen(["pkexec", "/usr/sbin/usbinstall", path_dev, path_cpio, path_iso, "-y"], env={"DBUS_USBINSTALL": "1"})
 
 
 # Show a list of object (step 1 and 2)