diff --git a/smlight_cc_flasher/cli.py b/smlight_cc_flasher/cli.py
index d5d8938..5d07ea7 100755
--- a/smlight_cc_flasher/cli.py
+++ b/smlight_cc_flasher/cli.py
@@ -54,7 +54,7 @@ def config_logging(self, log_level):
 
     def validate_device(self, value):
         windows_pattern = r"^COM\d+$"
-        linux_pattern = r"^/dev/tty(USB|ACM)\d+$"
+        linux_pattern = r"^/dev/tty(USB|ACM|S)\d+$"
         macos_pattern = r"^/dev/tty\.(usbserial|usbmodem)[A-Za-z0-9.-]+$"
         socket_pattern = r"^socket://[A-Za-z0-9.-]+:\d+$"