diff --git a/vllm/logger.py b/vllm/logger.py
index 3c6bf080..77dddbfb 100644
--- a/vllm/logger.py
+++ b/vllm/logger.py
@@ -43,6 +43,7 @@ DEFAULT_LOGGING_CONFIG = {
         },
     },
     "version": 1,
+    "disable_existing_loggers": False
 }