diff --git a/dvc_s3/__init__.py b/dvc_s3/__init__.py
index d829f91..7518265 100644
--- a/dvc_s3/__init__.py
+++ b/dvc_s3/__init__.py
@@ -167,6 +167,7 @@ def _prepare_credentials(self, **config):
         # session configuration
         login_info["profile"] = config.get("profile")
         login_info["use_ssl"] = config.get("use_ssl", True)
+        login_info["anon"] = config.get("allow_anonymous_login")
 
         # extra client configuration
         client = login_info["client_kwargs"]