diff --git a/index.d.ts b/index.d.ts
index de1e2653..523731bb 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -8,6 +8,7 @@ export declare class Report {
     include?: string | string[],
     reporter: string[],
     reportsDirectory?: string,
+    reporterOptions?: Record<string, Record<string, unknown>>
     tempDirectory?: string,
     watermarks?: Partial<{
       statements: Watermark;