diff --git a/antarest/study/service.py b/antarest/study/service.py
index 1523434822..f4bb7304dd 100644
--- a/antarest/study/service.py
+++ b/antarest/study/service.py
@@ -1039,6 +1039,7 @@ def export_study_flat(
             try:
                 return export_study_flat(
                     path_study=path_study,
+                    study_factory=study,
                     dest=dest,
                     outputs=len(output_list or []) > 0,
                     output_list_filter=output_list,
@@ -1050,6 +1051,7 @@ def export_study_flat(
         output_src_path = path_study / "output"
         export_study_flat(
             path_study=snapshot_path,
+            study_factory=study,
             dest=dest,
             outputs=len(output_list or []) > 0,
             output_list_filter=output_list,
diff --git a/antarest/study/storage/abstract_storage_service.py b/antarest/study/storage/abstract_storage_service.py
index bc466580cd..be565c6127 100644
--- a/antarest/study/storage/abstract_storage_service.py
+++ b/antarest/study/storage/abstract_storage_service.py
@@ -39,6 +39,7 @@
 def export_study_flat(
     path_study: Path,
     dest: Path,
+    study_factory: StudyFactory,
     outputs: bool = True,
     output_list_filter: Optional[List[str]] = None,
     output_src_path: Optional[Path] = None,
@@ -49,6 +50,7 @@ def export_study_flat(
     Args:
         path_study: Study source path
         dest: Destination path.
+        study_factory: StudyFactory,
         outputs: List of outputs to keep.
         output_list_filter: List of outputs to keep (None indicate all outputs).
         output_src_path: Denormalize the study (replace matrix links by real matrices).
@@ -89,6 +91,11 @@ def export_study_flat(
     duration = "{:.3f}".format(stop_time - start_time)
     logger.info(f"Study {path_study} exported (flat mode) in {duration}s")
 
+    study = study_factory.create_from_fs(dest, "", use_cache=False)
+    study.tree.denormalize()
+    duration = "{:.3f}".format(time.time() - stop_time)
+    logger.info(f"Study {path_study} denormalized in {duration}s")
+
 
 class AbstractStorageService(IStudyStorageService[T], ABC):
     def __init__(
@@ -293,11 +300,14 @@ def export_study(self, metadata: T, target: Path, outputs: bool = True) -> Path:
                 output_src_path = path_study / "output"
                 export_study_flat(
                     path_study=snapshot_path,
+                    study_factory=self.study_factory,
                     dest=tmp_study_path,
                     outputs=outputs,
                     output_src_path=output_src_path,
                 )
-            export_study_flat(path_study, tmp_study_path, outputs)
+            export_study_flat(
+                path_study, tmp_study_path, self.study_factory, outputs
+            )
             stopwatch = StopWatch()
             zip_dir(tmp_study_path, target)
             stopwatch.log_elapsed(lambda x: logger.info(f"Study {path_study} exported (zipped mode) in {x}s"))
diff --git a/antarest/study/storage/variantstudy/variant_study_service.py b/antarest/study/storage/variantstudy/variant_study_service.py
index 61ff09f025..db134d18ad 100644
--- a/antarest/study/storage/variantstudy/variant_study_service.py
+++ b/antarest/study/storage/variantstudy/variant_study_service.py
@@ -726,6 +726,7 @@ def _generate(
                 export_study_flat(
                     snapshot_path,
                     dst_path,
+                    parent_study,
                     outputs=False,
                     output_src_path=output_src_path,
                 )
@@ -737,6 +738,7 @@ def _generate(
                     export_study_flat(
                         path_study=path_study,
                         dest=dst_path,
+                        study_factory=parent_study,
                         outputs=False,
                     )
                 finally: