1 files changed, 1 insertions, 1 deletions
diff --git a/cmd2/utils.py b/cmd2/utils.py
index e4ea79ef..35c953e0 100644
--- a/cmd2/utils.py
+++ b/cmd2/utils.py
@@ -341,7 +341,7 @@ class StdSim(object):
 
     def clear(self) -> None:
         """Clear the internal contents"""
-        self.buffer.byte_buf = bytearray()
+        self.buffer.byte_buf.clear()
 
     def isatty(self) -> bool:
         """StdSim only considered an interactive stream if `echo` is True and `inner_stream` is a tty."""