diff --git a/src/azure-cli/azure/cli/command_modules/container/custom.py b/src/azure-cli/azure/cli/command_modules/container/custom.py
index df230ec984b..bbdabbc071c 100644
--- a/src/azure-cli/azure/cli/command_modules/container/custom.py
+++ b/src/azure-cli/azure/cli/command_modules/container/custom.py
@@ -641,6 +641,8 @@ def _on_ws_open(ws):
 
 
 def _on_ws_msg(ws, msg):
+    if isinstance(msg, bytes):
+        msg = msg.decode('utf-8')
     sys.stdout.write(msg)
     sys.stdout.flush()