diff --git a/packages/frontend/src/components/MkPostForm.vue b/packages/frontend/src/components/MkPostForm.vue
index c89859156f..11567a54b3 100644
--- a/packages/frontend/src/components/MkPostForm.vue
+++ b/packages/frontend/src/components/MkPostForm.vue
@@ -125,7 +125,7 @@ import { formatTimeString } from '@/utility/format-time-string.js';
 import { Autocomplete } from '@/utility/autocomplete.js';
 import * as os from '@/os.js';
 import { misskeyApi } from '@/utility/misskey-api.js';
-import { selectFile } from '@/utility/drive.js';
+import { chooseDriveFile } from '@/utility/drive.js';
 import { store } from '@/store.js';
 import MkInfo from '@/components/MkInfo.vue';
 import { i18n } from '@/i18n.js';
@@ -456,6 +456,14 @@ function chooseFileFromPc(ev: MouseEvent) {
 	});
 }
 
+function chooseFileFromDrive(ev: MouseEvent) {
+	if (props.mock) return;
+
+	chooseDriveFile({ multiple: true }).then(driveFiles => {
+		files.value.push(...driveFiles);
+	});
+}
+
 function detachFile(id) {
 	files.value = files.value.filter(x => x.id !== id);
 }