diff --git a/ts/index.ts b/ts/index.ts
index 4a634c7..ec9d6a4 100644
--- a/ts/index.ts
+++ b/ts/index.ts
@@ -6,4 +6,5 @@ declare global {
 }
 
 // normal
+export * from './interfaces/index.js';
 export * from './smartpdf.classes.smartpdf.js';