diff --git a/bin/sacada b/bin/sacada
index 7d965638bea4207cd2033539b4e8cf13e9c1c5c8..99f5c1f7f94301b010f13abcc0a63dbd0c82f632 100755
--- a/bin/sacada
+++ b/bin/sacada
@@ -9,7 +9,7 @@ from sacada.SACADA import SACADA
 typeR = thermocouples['R']
 
 @click.group()
-@click.option('--port', default="/dev/ttyACM1", help='serial port location eg.: /dev/ttyACM0 (default)')
+@click.option('--port', default="/dev/ttyACM0", help='serial port location eg.: /dev/ttyACM0 (default)')
 @click.pass_context
 def cli(ctx, port):
     ctx.obj['s'] = SACADA(port)