diff --git a/packages/openauth/src/ui/theme.ts b/packages/openauth/src/ui/theme.ts
index 8bc457a0..af930db1 100644
--- a/packages/openauth/src/ui/theme.ts
+++ b/packages/openauth/src/ui/theme.ts
@@ -1,4 +1,4 @@
-export type ColorScheme = {
+export interface ColorScheme {
   dark: string
   light: string
 }