diff --git a/plugins/RemovableDriveOutputDevice/OSXRemovableDrivePlugin.py b/plugins/RemovableDriveOutputDevice/OSXRemovableDrivePlugin.py
index aafc129541..de49e8ba34 100644
--- a/plugins/RemovableDriveOutputDevice/OSXRemovableDrivePlugin.py
+++ b/plugins/RemovableDriveOutputDevice/OSXRemovableDrivePlugin.py
@@ -6,10 +6,7 @@ from . import RemovableDrivePlugin
 
 from UM.Logger import Logger
 
-import threading
-
 import subprocess
-import time
 import os
 
 import plistlib