diff --git a/plugins/USBPrinting/AutoDetectBaudJob.py b/plugins/USBPrinting/AutoDetectBaudJob.py
index 1a7187be4d7..5a8e4557202 100644
--- a/plugins/USBPrinting/AutoDetectBaudJob.py
+++ b/plugins/USBPrinting/AutoDetectBaudJob.py
@@ -27,14 +27,7 @@ def run(self) -> None:
         write_timeout = 3
         read_timeout = 3
         tries = 2
-
-        programmer = Stk500v2()
         serial = None
-        try:
-            programmer.connect(self._serial_port)
-            serial = programmer.leaveISP()
-        except ispBase.IspError:
-            programmer.close()
 
         for retry in range(tries):
             for baud_rate in self._all_baud_rates: