diff --git a/software/script/chameleon_cli_unit.py b/software/script/chameleon_cli_unit.py
index 7e51cd7..f3da704 100644
--- a/software/script/chameleon_cli_unit.py
+++ b/software/script/chameleon_cli_unit.py
@@ -198,7 +198,7 @@ class HWConnect(BaseCLIUnit):
                             PSHEXE=fn
                             break
                     if PSHEXE:
-                        process = subprocess.Popen(["powershell.exe","Get-CimInstance -ClassName Win32_serialport | Where-Object {$_.PNPDeviceID -like '*VID_6868&PID_8686*'} | Select -expandproperty DeviceID"],stdout=subprocess.PIPE);
+                        process = subprocess.Popen([PSHEXE,"Get-CimInstance -ClassName Win32_serialport | Where-Object {$_.PNPDeviceID -like '*VID_6868&PID_8686*'} | Select -expandproperty DeviceID"],stdout=subprocess.PIPE);
                         res = process.communicate()[0]
                         _comport = res.decode('utf-8').strip()
                         if _comport: