diff --git a/src/types.ts b/src/types.ts
index 8fb3c6e..3f52f64 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -12,7 +12,7 @@ export type TocHeading = {
 export type Toc = ReadonlyArray<TocHeading>;
 export interface LumaMdxLayoutPropsFile {
   data: unknown;
-  history: unknown[];
+  history: string[];
   messages: unknown[];
   path?: string;
   value: string;