diff --git a/monk_tf/serial_io.py b/monk_tf/serial_io.py
index 5cb2659..56bc92e 100644
--- a/monk_tf/serial_io.py
+++ b/monk_tf/serial_io.py
@@ -91,7 +91,7 @@ def cmd(self, msg, prompt=None, sleep_time=.1, timeout=5, linesep="\n"):
                 sleep_time,
                 timeout
         )
-        return self.last_output
+        return self.last_confidence, self.last_output
 
 
     def read_until(self, end_strip, start_strip=None, sleep_time=.1, timeout=5):