diff --git a/src/mudata/_core/io.py b/src/mudata/_core/io.py
index c282e04..e4b3620 100644
--- a/src/mudata/_core/io.py
+++ b/src/mudata/_core/io.py
@@ -18,9 +18,9 @@
 from anndata.compat import _read_attr
 from scipy import sparse
 
+from .config import OPTIONS
 from .file_backing import AnnDataFileManager, MuDataFileManager
 from .mudata import ModDict, MuData
-from .config import OPTIONS
 
 #
 # Saving multimodal data objects