diff --git a/01OS/01OS/clients/base_device.py b/01OS/01OS/clients/base_device.py
index 7e6945b..a80fb8d 100644
--- a/01OS/01OS/clients/base_device.py
+++ b/01OS/01OS/clients/base_device.py
@@ -329,6 +329,6 @@ class Device:
                 listener.start()
 
     def start(self):
-        if os.getenv('TEACH_MODE') == "False":
+        if os.getenv('TEACH_MODE') != "True":
             asyncio.run(self.start_async())
             p.terminate()
\ No newline at end of file