diff --git a/openqdc/utils/download_api.py b/openqdc/utils/download_api.py
index 764fceb..2cbf442 100644
--- a/openqdc/utils/download_api.py
+++ b/openqdc/utils/download_api.py
@@ -89,7 +89,7 @@ def get_default_endpoint(self, endpoint: str) -> AbstractFileSystem:
                     secret="d5b32f241ad8ee8d0a3173cd51b4f36d6869f168b21acef75f244a81dc10e1fb",
                     endpoint_url=self.endpoint_url,
                 )
-                if os.environ.get("OPENQDC_DOWNLOAD_API") is not None
+                if os.environ.get("OPENQDC_DOWNLOAD_API") is None
                 else fsspec.filesystem("https")
             )
             # return fsspec.filesystem("https")