diff --git a/src/services/NativeService/hooks.tsx b/src/services/NativeService/hooks.tsx
index 3e748c2..1c8a8ec 100644
--- a/src/services/NativeService/hooks.tsx
+++ b/src/services/NativeService/hooks.tsx
@@ -105,9 +105,6 @@ export function useRegisterReceivingShareIntent() {
                 const fileFields = {
                   ...fields,
                   type: file.mimeType,
-                  width: file.width,
-                  height: file.height,
-                  duration: file.duration,
                   text: fileContent,
                 };
                 await storageOfDefaultWorkspace.saveTiddler(file.fileName || randomTitle, fileFields);
diff --git a/src/services/WikiStorageService/index.ts b/src/services/WikiStorageService/index.ts
index 85acc33..94b089a 100644
--- a/src/services/WikiStorageService/index.ts
+++ b/src/services/WikiStorageService/index.ts
@@ -44,7 +44,7 @@ export class WikiStorageService {
 
   /**
    * Save tiddler. Return the e-tag.
-   * `tags` field should be string, and fields can't contain `null`, otherwise TW won't boot.
+   * `tags` field should be string, and fields can't contain `null` or number or array, otherwise TW won't boot.
    */
   async saveTiddler(title: string, fields: ITiddlerFieldsParam): Promise<string> {
     try {