diff --git a/packages/frontend/src/components/MkDialog.vue b/packages/frontend/src/components/MkDialog.vue
index 3f7519a43f..3ee7bb9580 100644
--- a/packages/frontend/src/components/MkDialog.vue
+++ b/packages/frontend/src/components/MkDialog.vue
@@ -77,7 +77,7 @@ type Select = {
 		sectionTitle: string;
 		items: SelectItem[];
 	})[];
-	default: string | null;
+	default: any | null;
 };
 
 type Result = string | number | true | null;
diff --git a/packages/frontend/src/os.ts b/packages/frontend/src/os.ts
index d891525782..2c0be767f4 100644
--- a/packages/frontend/src/os.ts
+++ b/packages/frontend/src/os.ts
@@ -478,7 +478,7 @@ type SelectItem<C> = {
 export function select<C = unknown>(props: {
 	title?: string;
 	text?: string;
-	default: string;
+	default: C;
 	items: (SelectItem<C> | {
 		sectionTitle: string;
 		items: SelectItem<C>[];
@@ -491,7 +491,7 @@ export function select<C = unknown>(props: {
 export function select<C = unknown>(props: {
 	title?: string;
 	text?: string;
-	default?: string | null;
+	default?: C | null;
 	items: (SelectItem<C> | {
 		sectionTitle: string;
 		items: SelectItem<C>[];
@@ -504,7 +504,7 @@ export function select<C = unknown>(props: {
 export function select<C = unknown>(props: {
 	title?: string;
 	text?: string;
-	default?: string | null;
+	default?: C | null;
 	items: (SelectItem<C> | {
 		sectionTitle: string;
 		items: SelectItem<C>[];