diff --git a/frontend/src/utils/upload.js b/frontend/src/utils/upload.js
index e1222024..3e3690e4 100644
--- a/frontend/src/utils/upload.js
+++ b/frontend/src/utils/upload.js
@@ -129,7 +129,7 @@ export function handleFiles(files, base, overwrite = false) {
       path,
       file,
       overwrite,
-      type: detectType(file.type),
+      ...(!file.isDir && { type: detectType(file.type) })
     };
 
     store.dispatch("upload/upload", item);