diff --git a/litellm/__init__.py b/litellm/__init__.py
index 60971f6d8c2..c9b4599edb5 100644
--- a/litellm/__init__.py
+++ b/litellm/__init__.py
@@ -202,9 +202,9 @@ telemetry = True
 max_tokens: int = DEFAULT_MAX_TOKENS  # OpenAI Defaults
 drop_params = os.getenv("LITELLM_DROP_PARAMS", "").lower() in ("1", "true", "yes", "on")
 modify_params = os.getenv("LITELLM_MODIFY_PARAMS", "").lower() in ("1", "true", "yes", "on")
-use_chat_completions_url_for_anthropic_messages: bool = bool(
-    os.getenv("LITELLM_USE_CHAT_COMPLETIONS_URL_FOR_ANTHROPIC_MESSAGES", False)
-)  # When True, routes OpenAI /v1/messages requests to chat/completions instead of the Responses API
+use_chat_completions_url_for_anthropic_messages: bool = (
+    os.getenv("LITELLM_USE_CHAT_COMPLETIONS_URL_FOR_ANTHROPIC_MESSAGES", "").lower() in ("1", "true", "yes", "on")
+)
 retry = True
 ### AUTH ###
 api_key: Optional[str] = None