diff --git a/samples/tools/autogenbench/autogenbench/run_cmd.py b/samples/tools/autogenbench/autogenbench/run_cmd.py
index d4f6d3face3e..e548a16b8f91 100644
--- a/samples/tools/autogenbench/autogenbench/run_cmd.py
+++ b/samples/tools/autogenbench/autogenbench/run_cmd.py
@@ -492,7 +492,7 @@ def run_scenario_in_docker(work_dir, env, timeout=TASK_TIMEOUT, docker_image=Non
     docker_timeout = timeout + 60  # One full minute after the bash timeout command should have already triggered
     start_time = time.time()
     logs = container.logs(stream=True)
-    log_file = open(os.path.join(work_dir, "console_log.txt"), "wt")
+    log_file = open(os.path.join(work_dir, "console_log.txt"), "wt", encoding="utf-8")
     stopping = False
 
     for chunk in logs:  # When streaming it should return a generator