diff --git a/antarest/study/storage/abstract_storage_service.py b/antarest/study/storage/abstract_storage_service.py
index 69f3156755..153c94ae55 100644
--- a/antarest/study/storage/abstract_storage_service.py
+++ b/antarest/study/storage/abstract_storage_service.py
@@ -81,7 +81,6 @@ def export_study_flat(
     )
 
     shutil.copytree(src=path_study, dst=dest, ignore=ignore_patterns)
-
     if outputs and output_src_path.is_dir():
         if output_dest_path.exists():
             shutil.rmtree(output_dest_path)
diff --git a/tests/storage/business/test_export.py b/tests/storage/business/test_export.py
index df4697a004..1764807418 100644
--- a/tests/storage/business/test_export.py
+++ b/tests/storage/business/test_export.py
@@ -8,6 +8,7 @@
 from antarest.core.config import Config, StorageConfig
 from antarest.study.model import DEFAULT_WORKSPACE_NAME, RawStudy
 from antarest.study.storage.rawstudy.raw_study_service import RawStudyService
+from antarest.study.storage.abstract_storage_service import export_study_flat
 
 
 @pytest.mark.unit_test
@@ -105,17 +106,17 @@ def test_export_flat(tmp_path: Path):
     study_factory.create_from_fs.return_value = study_tree
 
     study = RawStudy(id="id", path=root)
+    path_study = Path(study.path)
 
-    study_service.export_study_flat(
-        study, tmp_path / "copy_with_output", outputs=True
-    )
+    export_study_flat(path_study, tmp_path / "copy_with_output", outputs=True)
 
     copy_with_output_hash = dirhash(tmp_path / "copy_with_output", "md5")
 
     assert root_hash == copy_with_output_hash
 
-    study_service.export_study_flat(
-        study, tmp_path / "copy_without_output", outputs=False
+    path_study = Path(study.path)
+    export_study_flat(
+        path_study, tmp_path / "copy_without_output", outputs=False
     )
 
     copy_without_output_hash = dirhash(tmp_path / "copy_without_output", "md5")
diff --git a/tests/storage/integration/test_exporter.py b/tests/storage/integration/test_exporter.py
index 355d5bf462..9a83fd212c 100644
--- a/tests/storage/integration/test_exporter.py
+++ b/tests/storage/integration/test_exporter.py
@@ -16,7 +16,7 @@
 from antarest.matrixstore.service import MatrixService
 from antarest.study.main import build_study_service
 from antarest.study.model import DEFAULT_WORKSPACE_NAME, RawStudy
-from antarest.study.storage.utils import export_study_flat
+from antarest.study.storage.abstract_storage_service import export_study_flat
 from antarest.study.storage.variantstudy.business.matrix_constants_generator import (
     GeneratorMatrixConstants,
 )
@@ -103,13 +103,11 @@ def test_exporter_file_no_output(
 @pytest.mark.parametrize(
     "output_list", [None, [], ["20201014-1427eco"], ["20201014-1430adq-2"]]
 )
-@pytest.mark.parametrize("denormalize", [True, False])
 def test_export_flat(
     tmp_path: Path,
     sta_mini_zip_path: Path,
     outputs: bool,
     output_list: Optional[List[str]],
-    denormalize: bool,
 ) -> None:
     path_studies = tmp_path / "studies"
     path_studies.mkdir(exist_ok=True)
@@ -123,10 +121,8 @@ def test_export_flat(
     export_study_flat(
         path_studies / "STA-mini",
         export_path / "STA-mini-export",
-        Mock(),
         outputs,
         output_list,
-        denormalize=denormalize,
     )
 
     export_output_path = export_path / "STA-mini-export" / "output"