diff --git a/vllm/logger.py b/vllm/logger.py
index b20d55e3c1019..0ee47de173add 100644
--- a/vllm/logger.py
+++ b/vllm/logger.py
@@ -20,7 +20,7 @@ VLLM_LOGGING_LEVEL = envs.VLLM_LOGGING_LEVEL
 VLLM_LOGGING_PREFIX = envs.VLLM_LOGGING_PREFIX
 
 _FORMAT = (f"{VLLM_LOGGING_PREFIX}%(levelname)s %(asctime)s "
-           "%(filename)s:%(lineno)d] %(message)s")
+           "[%(filename)s:%(lineno)d] %(message)s")
 _DATE_FORMAT = "%m-%d %H:%M:%S"
 
 DEFAULT_LOGGING_CONFIG = {