diff --git a/antareslauncher/use_cases/retrieve/final_zip_extractor.py b/antareslauncher/use_cases/retrieve/final_zip_extractor.py
index 81d02cb..a9136c7 100644
--- a/antareslauncher/use_cases/retrieve/final_zip_extractor.py
+++ b/antareslauncher/use_cases/retrieve/final_zip_extractor.py
@@ -29,17 +29,17 @@ def extract_final_zip(self, study: StudyDTO) -> None:
                         # If all files are in the same directory, we can extract the ZIP
                         # file directly in the target directory.
                         target_dir = zip_path.parent
+                        progress_bar = self._display.generate_progress_bar(
+                            names, desc="Extracting archive:", total=len(names)
+                        )
+                        for file in progress_bar:
+                            zf.extract(member=file, path=target_dir)
                     else:
-                        # Otherwise, we need to create a directory to store the results.
-                        # This situation occurs when the ZIP file contains
-                        # only the simulation results and not the entire study.
-                        target_dir = zip_path.with_suffix("")
-
-                    progress_bar = self._display.generate_progress_bar(
-                        names, desc="Extracting archive:", total=len(names)
-                    )
-                    for file in progress_bar:
-                        zf.extract(member=file, path=target_dir)
+                        # The directory is already an output and does not need to be unzipped.
+                        # All we have to do is rename it by removing the prefix "_finished"
+                        # and the suffix "job_id" that lies before the ".zip".
+                        # If these prefix/suffix prefix change, this code needs to be adapted.
+                        zip_path.rename((zip_path.parent / (zip_path.name[9:zip_path.name.rfind("_")] + ".zip")))
 
             except (OSError, zipfile.BadZipFile) as exc:
                 # If we cannot extract the final ZIP file, either because the file
diff --git a/tests/unit/retriever/test_final_zip_extractor.py b/tests/unit/retriever/test_final_zip_extractor.py
index 7817dc0..86159a3 100644
--- a/tests/unit/retriever/test_final_zip_extractor.py
+++ b/tests/unit/retriever/test_final_zip_extractor.py
@@ -131,8 +131,10 @@ def test_extract_final_zip__finished_study__nominal_results(self, finished_study
         assert finished_study.final_zip_extracted
         assert not finished_study.with_error
 
-        result_dir = Path(finished_study.local_final_zipfile_path).with_suffix("")
-        assert result_dir.joinpath("simulation.log").is_file()
+        result_dir = Path(Path(finished_study.local_final_zipfile_path).parent / finished_study.name).with_suffix(".zip")
+        assert result_dir.exists()
+        with zipfile.ZipFile(result_dir, "r") as zf:
+            assert zf.namelist() == ["simulation.log"]
 
     @pytest.mark.unit_test
     def test_extract_final_zip__finished_study__reentrancy(self, finished_study: StudyDTO) -> None: