diff --git a/src/chronos/boto_utils.py b/src/chronos/boto_utils.py
index 3e20e97..d339333 100644
--- a/src/chronos/boto_utils.py
+++ b/src/chronos/boto_utils.py
@@ -101,7 +101,7 @@ def cache_model_from_s3(
     boto3_session: boto3.Session | None = None,
 ):
     assert re.match("^s3://([^/]+)/(.*?([^/]+)/?)$", s3_uri) is not None, f"Not a valid S3 URI: {s3_uri}"
-    cache_home = Path(os.environ.get("XGD_CACHE_HOME", os.path.expanduser("~/.cache")))
+    cache_home = Path(os.environ.get("XDG_CACHE_HOME", os.path.expanduser("~/.cache")))
     cache_dir = cache_home / "chronos"
     s3_uri = s3_uri.rstrip("/")
     bucket, prefix = s3_uri.replace("s3://", "").split("/", 1)