fix wrong command line argument check
diff --git a/pyserial/examples/miniterm.py b/pyserial/examples/miniterm.py
index a85f1d8..895830c 100644
--- a/pyserial/examples/miniterm.py
+++ b/pyserial/examples/miniterm.py
@@ -480,7 +480,7 @@
if options.cr and options.lf:
parser.error("only one of --cr or --lf can be specified")
- if options.dtr_state is not None and options.rts_state is not None and options.dtr_state == options.rts_state:
+ if options.menu_char == options.exit_char:
parser.error('--exit-char can not be the same as --menu-char')
global EXITCHARCTER, MENUCHARACTER