diff --git a/esmvalcore/esgf/facets.py b/esmvalcore/esgf/facets.py
index 4d6030a618..ee6de7916c 100644
--- a/esmvalcore/esgf/facets.py
+++ b/esmvalcore/esgf/facets.py
@@ -8,8 +8,8 @@
 from esmvalcore.io.esgf.facets import DATASET_MAP, FACETS, create_dataset_map
 
 __all__ = [
-    "FACETS",
     "DATASET_MAP",
+    "FACETS",
     "create_dataset_map",
 ]
 
diff --git a/esmvalcore/io/esgf/__init__.py b/esmvalcore/io/esgf/__init__.py
index 7568cc0400..6fdb0b2b7b 100644
--- a/esmvalcore/io/esgf/__init__.py
+++ b/esmvalcore/io/esgf/__init__.py
@@ -43,8 +43,8 @@
 from esmvalcore.io.esgf._search import ESGFDataSource, find_files
 
 __all__ = [
-    "ESGFFile",
     "ESGFDataSource",
+    "ESGFFile",
     "download",
     "find_files",
 ]