diff --git a/ports/RGSX/network.py b/ports/RGSX/network.py
index 355ae41..5dd2298 100644
--- a/ports/RGSX/network.py
+++ b/ports/RGSX/network.py
@@ -261,7 +261,8 @@ async def download_rom(url, platform, game_name, is_zip_non_supported=False, tas
             dest_dir = None
             for platform_dict in config.platform_dicts:
                 if platform_dict.get("platform_name") == platform:
-                    platform_folder = platform_dict.get("folder", normalize_platform_name(platform))
+                    # Priorité: clé 'folder'; fallback legacy: 'dossier'; sinon normalisation du nom de plateforme
+                    platform_folder = platform_dict.get("folder") or platform_dict.get("dossier") or normalize_platform_name(platform)
                     dest_dir = apply_symlink_path(config.ROMS_FOLDER, platform_folder)
                     logger.debug(f"Répertoire de destination trouvé pour {platform}: {dest_dir}")
                     break
@@ -545,11 +546,11 @@ async def download_from_1fichier(url, platform, game_name, is_zip_non_supported=
             dest_dir = None
             for platform_dict in config.platform_dicts:
                 if platform_dict.get("platform_name") == platform:
-                    platform_folder = platform_dict.get("folder", normalize_platform_name(platform))
+                    platform_folder = platform_dict.get("folder") or platform_dict.get("dossier") or normalize_platform_name(platform)
                     dest_dir = apply_symlink_path(config.ROMS_FOLDER, platform_folder)
                     break
             if not dest_dir:
-                logger.warning(f"Aucun dossier 'folder' trouvé pour la plateforme {platform}")
+                logger.warning(f"Aucun dossier 'folder'/'dossier' trouvé pour la plateforme {platform}")
                 platform_folder = normalize_platform_name(platform)
                 dest_dir = apply_symlink_path(config.ROMS_FOLDER, platform_folder)
             logger.debug(f"Répertoire destination déterminé: {dest_dir}")
diff --git a/ports/RGSX/utils.py b/ports/RGSX/utils.py
index c8527a0..b597d6f 100644
--- a/ports/RGSX/utils.py
+++ b/ports/RGSX/utils.py
@@ -168,6 +168,11 @@ def load_sources():
                 # Supporter ancienne clé system_image -> platform_image si présente
                 legacy = s.pop("system_image", "") if isinstance(s, dict) else ""
                 s["platform_image"] = legacy or ""
+            # Normaliser clé dossier -> folder si besoin (legacy francophone)
+            if isinstance(s, dict) and "folder" not in s:
+                legacy_folder = s.get("dossier") or s.get("folder_name")
+                if legacy_folder:
+                    s["folder"] = legacy_folder
 
         existing_names = {s.get("platform_name", "") for s in sources}
         added = []