diff --git a/src/panel-policy-manager.h b/src/panel-policy-manager.h
index 640c184..b28c90a 100644
--- a/src/panel-policy-manager.h
+++ b/src/panel-policy-manager.h
@@ -91,6 +91,9 @@
 //                           ndn::Ptr<ndn::Data> originalData,
 //                           const ndn::UnverifiedCallback& unverifiedCallback);
 
+  ndn::Ptr<ndn::security::Publickey>
+  getTrustedKey(const ndn::Name& inviterCertName);
+
 private:
   int m_stepLimit;
   ndn::Ptr<ndn::security::CertificateCache> m_certificateCache;