diff --git a/src/front/Services/PdfService/index.ts b/src/front/Services/PdfService/index.ts
index 66f2ba2c..62ea9765 100644
--- a/src/front/Services/PdfService/index.ts
+++ b/src/front/Services/PdfService/index.ts
@@ -21,6 +21,7 @@ export interface Metadata {
 	commitmentId: string,
 	documentUid: string;
 	documentType: string;
+	merkleProof: string;
 }
 
 export interface CertificateData {