diff --git a/lib/TTLS_UI/src/Module.cpp b/lib/TTLS_UI/src/Module.cpp
index abd2639..35527aa 100644
--- a/lib/TTLS_UI/src/Module.cpp
+++ b/lib/TTLS_UI/src/Module.cpp
@@ -295,9 +295,10 @@ void eap::peer_ttls_ui::invoke_identity_ui(
                                 dlg.AddContent(new wxEAPCredentialWarningPanel(*cfg_prov, cfg_method->m_inner->m_last_status, &dlg));
                             wxEAPCredentialsPanelBase *panel = NULL;
                             switch (cfg_method->m_inner->get_method_id()) {
-                                case eap_type_legacy_pap     : panel = new wxPAPCredentialsPanel     (*cfg_prov, *dynamic_cast<const eap::config_method_pap        *>(cfg_method->m_inner.get()), *dynamic_cast<eap::credentials_pass*>(cred->m_inner.get()), &dlg, false); break;
-                                case eap_type_legacy_mschapv2: panel = new wxMSCHAPv2CredentialsPanel(*cfg_prov, *dynamic_cast<const eap::config_method_mschapv2   *>(cfg_method->m_inner.get()), *dynamic_cast<eap::credentials_pass*>(cred->m_inner.get()), &dlg, false); break;
-                                case eap_type_mschapv2       : panel = new wxMSCHAPv2CredentialsPanel(*cfg_prov, *dynamic_cast<const eap::config_method_eapmschapv2*>(cfg_method->m_inner.get()), *dynamic_cast<eap::credentials_pass*>(cred->m_inner.get()), &dlg, false); break;
+                                case eap_type_legacy_pap     : panel = new wxPAPCredentialsPanel     (*cfg_prov, *dynamic_cast<const eap::config_method_pap        *>(cfg_method->m_inner.get()), *dynamic_cast<eap::credentials_pass    *>(cred->m_inner.get()), &dlg, false); break;
+                                case eap_type_legacy_mschapv2: panel = new wxMSCHAPv2CredentialsPanel(*cfg_prov, *dynamic_cast<const eap::config_method_mschapv2   *>(cfg_method->m_inner.get()), *dynamic_cast<eap::credentials_pass    *>(cred->m_inner.get()), &dlg, false); break;
+                                case eap_type_mschapv2       : panel = new wxMSCHAPv2CredentialsPanel(*cfg_prov, *dynamic_cast<const eap::config_method_eapmschapv2*>(cfg_method->m_inner.get()), *dynamic_cast<eap::credentials_pass    *>(cred->m_inner.get()), &dlg, false); break;
+                                case eap_type_gtc            : panel = new wxGTCCredentialsPanel     (*cfg_prov, *dynamic_cast<const eap::config_method_eapgtc     *>(cfg_method->m_inner.get()), *dynamic_cast<eap::credentials_identity*>(cred->m_inner.get()), &dlg, false); break;
                                 default                      : wxLogError("Unsupported inner authentication method.");
                             }
                             panel->SetRemember(src_inner == eap::credentials::source_storage);