diff --git a/apps/red-ui/src/app/utils/file-drop-utils.ts b/apps/red-ui/src/app/utils/file-drop-utils.ts
index eee385a4f..641386b7d 100644
--- a/apps/red-ui/src/app/utils/file-drop-utils.ts
+++ b/apps/red-ui/src/app/utils/file-drop-utils.ts
@@ -55,7 +55,9 @@ export function convertFiles(files: FileList | File[], dossier: DossierWrapper):
             file.file.name.toLowerCase().endsWith('.zip') ||
             isCsv(file)
     );
-    uploadFiles.sort((a, b) => a.size - b.size);
-    uploadFiles.sort(a => (isCsv(a) ? 1 : 0));
-    return uploadFiles;
+
+    const pdfFiles = uploadFiles.filter(a => !isCsv(a)).sort((a, b) => a.size - b.size);
+    const csvFiles = uploadFiles.filter(a => isCsv(a));
+
+    return [...pdfFiles, ...csvFiles];
 }