diff --git a/packages/client/src/components/post-form.vue b/packages/client/src/components/post-form.vue
index 9bad9a84f..4265c575e 100644
--- a/packages/client/src/components/post-form.vue
+++ b/packages/client/src/components/post-form.vue
@@ -74,7 +74,7 @@ import { formatTimeString } from '@/scripts/format-time-string';
 import { Autocomplete } from '@/scripts/autocomplete';
 import { noteVisibilities } from 'misskey-js';
 import * as os from '@/os';
-import { selectFile } from '@/scripts/select-file';
+import { selectFiles } from '@/scripts/select-file';
 import { defaultStore, notePostInterruptors, postFormActions } from '@/store';
 import { throttle } from 'throttle-debounce';
 import MkInfo from '@/components/ui/info.vue';
@@ -456,7 +456,7 @@ export default defineComponent({
 		},
 
 		chooseFileFrom(ev) {
-			selectFile(ev.currentTarget || ev.target, this.$ts.attachFile, true).then(files => {
+			selectFiles(ev.currentTarget || ev.target, this.$ts.attachFile).then(files => {
 				for (const file of files) {
 					this.files.push(file);
 				}
diff --git a/packages/client/src/pages/admin/emojis.vue b/packages/client/src/pages/admin/emojis.vue
index 9c9b3b2d4..a4ac5dceb 100644
--- a/packages/client/src/pages/admin/emojis.vue
+++ b/packages/client/src/pages/admin/emojis.vue
@@ -53,7 +53,7 @@ import MkButton from '@/components/ui/button.vue';
 import MkInput from '@/components/form/input.vue';
 import MkPagination from '@/components/ui/pagination.vue';
 import MkTab from '@/components/tab.vue';
-import { selectFile } from '@/scripts/select-file';
+import { selectFiles } from '@/scripts/select-file';
 import * as os from '@/os';
 import * as symbols from '@/symbols';
 
@@ -117,7 +117,7 @@ export default defineComponent({
 
 	methods: {
 		async add(e) {
-			const files = await selectFile(e.currentTarget || e.target, null, true);
+			const files = await selectFiles(e.currentTarget || e.target, null);
 
 			const promise = Promise.all(files.map(file => os.api('admin/emoji/add', {
 				fileId: file.id,
diff --git a/packages/client/src/pages/channel-editor.vue b/packages/client/src/pages/channel-editor.vue
index 3843ea979..67b839bc3 100644
--- a/packages/client/src/pages/channel-editor.vue
+++ b/packages/client/src/pages/channel-editor.vue
@@ -112,7 +112,7 @@ export default defineComponent({
 		},
 
 		setBannerImage(e) {
-			selectFile(e.currentTarget || e.target, null, false).then(file => {
+			selectFile(e.currentTarget || e.target, null).then(file => {
 				this.bannerId = file.id;
 			});
 		},
diff --git a/packages/client/src/pages/gallery/edit.vue b/packages/client/src/pages/gallery/edit.vue
index 08f31d0db..caca6aed4 100644
--- a/packages/client/src/pages/gallery/edit.vue
+++ b/packages/client/src/pages/gallery/edit.vue
@@ -37,7 +37,7 @@ import FormTuple from '@/components/debobigego/tuple.vue';
 import FormBase from '@/components/debobigego/base.vue';
 import FormGroup from '@/components/debobigego/group.vue';
 import FormSuspense from '@/components/debobigego/suspense.vue';
-import { selectFile } from '@/scripts/select-file';
+import { selectFiles } from '@/scripts/select-file';
 import * as os from '@/os';
 import * as symbols from '@/symbols';
 
@@ -95,7 +95,7 @@ export default defineComponent({
 
 	methods: {
 		selectFile(e) {
-			selectFile(e.currentTarget || e.target, null, true).then(files => {
+			selectFiles(e.currentTarget || e.target, null).then(files => {
 				this.files = this.files.concat(files);
 			});
 		},
diff --git a/packages/client/src/pages/messaging/messaging-room.form.vue b/packages/client/src/pages/messaging/messaging-room.form.vue
index 0ce589f03..8d92c430f 100644
--- a/packages/client/src/pages/messaging/messaging-room.form.vue
+++ b/packages/client/src/pages/messaging/messaging-room.form.vue
@@ -152,7 +152,7 @@ export default defineComponent({
 		},
 
 		chooseFile(e) {
-			selectFile(e.currentTarget || e.target, this.$ts.selectFile, false).then(file => {
+			selectFile(e.currentTarget || e.target, this.$ts.selectFile).then(file => {
 				this.file = file;
 			});
 		},
diff --git a/packages/client/src/pages/page-editor/page-editor.vue b/packages/client/src/pages/page-editor/page-editor.vue
index 52f6858b0..fe207555f 100644
--- a/packages/client/src/pages/page-editor/page-editor.vue
+++ b/packages/client/src/pages/page-editor/page-editor.vue
@@ -448,7 +448,7 @@ export default defineComponent({
 		},
 
 		setEyeCatchingImage(e) {
-			selectFile(e.currentTarget || e.target, null, false).then(file => {
+			selectFile(e.currentTarget || e.target, null).then(file => {
 				this.eyeCatchingImageId = file.id;
 			});
 		},
diff --git a/packages/client/src/pages/room/room.vue b/packages/client/src/pages/room/room.vue
index fa35d7d93..eb85d39dc 100644
--- a/packages/client/src/pages/room/room.vue
+++ b/packages/client/src/pages/room/room.vue
@@ -210,7 +210,7 @@ export default defineComponent({
 		},
 
 		chooseImage(key, e) {
-			selectFile(e.currentTarget || e.target, null, false).then(file => {
+			selectFile(e.currentTarget || e.target, null).then(file => {
 				room.updateProp(key, `/proxy/?${urlQuery({ url: file.thumbnailUrl })}`);
 				this.$refs.preview.selected(room.getSelectedObject());
 				this.changed = true;
diff --git a/packages/client/src/pages/settings/theme.vue b/packages/client/src/pages/settings/theme.vue
index 2f4daa26c..357b2ab83 100644
--- a/packages/client/src/pages/settings/theme.vue
+++ b/packages/client/src/pages/settings/theme.vue
@@ -188,7 +188,7 @@ export default defineComponent({
 			themesCount,
 			wallpaper,
 			setWallpaper(e) {
-				selectFile(e.currentTarget || e.target, null, false).then(file => {
+				selectFile(e.currentTarget || e.target, null).then(file => {
 					wallpaper.value = file.url;
 				});
 			},
diff --git a/packages/client/src/scripts/select-file.ts b/packages/client/src/scripts/select-file.ts
index 0c6bd7ccd..601989044 100644
--- a/packages/client/src/scripts/select-file.ts
+++ b/packages/client/src/scripts/select-file.ts
@@ -1,8 +1,9 @@
 import * as os from '@/os';
 import { i18n } from '@/i18n';
 import { defaultStore } from '@/store';
+import { DriveFile } from 'misskey-js/built/entities';
 
-export function selectFile(src: any, label: string | null, multiple = false) {
+function select(src: any, label: string | null, multiple: boolean): Promise<DriveFile | DriveFile[]> {
 	return new Promise((res, rej) => {
 		const chooseFileFromPc = () => {
 			const input = document.createElement('input');
@@ -86,3 +87,11 @@ export function selectFile(src: any, label: string | null, multiple = false) {
 		}], src);
 	});
 }
+
+export function selectFile(src: any, label: string | null = null): Promise<DriveFile> {
+	return select(src, label, false) as Promise<DriveFile>;
+}
+
+export function selectFiles(src: any, label: string | null = null): Promise<DriveFile[]> {
+	return select(src, label, true) as Promise<DriveFile[]>;
+}
diff --git a/packages/client/src/ui/chat/post-form.vue b/packages/client/src/ui/chat/post-form.vue
index e22bedf6b..8c572e3b1 100644
--- a/packages/client/src/ui/chat/post-form.vue
+++ b/packages/client/src/ui/chat/post-form.vue
@@ -59,7 +59,7 @@ import * as Acct from 'misskey-js/built/acct';
 import { formatTimeString } from '@/scripts/format-time-string';
 import { Autocomplete } from '@/scripts/autocomplete';
 import * as os from '@/os';
-import { selectFile } from '@/scripts/select-file';
+import { selectFiles } from '@/scripts/select-file';
 import { notePostInterruptors, postFormActions } from '@/store';
 import { throttle } from 'throttle-debounce';
 
@@ -342,7 +342,7 @@ export default defineComponent({
 		},
 
 		chooseFileFrom(ev) {
-			selectFile(ev.currentTarget || ev.target, this.$ts.attachFile, true).then(files => {
+			selectFiles(ev.currentTarget || ev.target, this.$ts.attachFile).then(files => {
 				for (const file of files) {
 					this.files.push(file);
 				}