diff --git a/ts/editor-toolbar/ButtonGroup.d.ts b/ts/editor-toolbar/ButtonGroup.d.ts
deleted file mode 100644
index f5f273e45..000000000
--- a/ts/editor-toolbar/ButtonGroup.d.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright: Ankitects Pty Ltd and contributors
-// License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
-import type { ToolbarItem } from "./types";
-
-export interface ButtonGroupProps {
- id: string;
- className?: string;
- items: ToolbarItem[];
- fullWidth?: boolean;
-}
diff --git a/ts/editor-toolbar/ButtonGroup.svelte b/ts/editor-toolbar/ButtonGroup.svelte
index a23c5f5c2..053dca2fa 100644
--- a/ts/editor-toolbar/ButtonGroup.svelte
+++ b/ts/editor-toolbar/ButtonGroup.svelte
@@ -3,19 +3,31 @@ Copyright: Ankitects Pty Ltd and contributors
License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
-->
-