diff --git a/lib/gssapi/gssapi/gssapi_krb5.h b/lib/gssapi/gssapi/gssapi_krb5.h
index 339112196..4aab5a350 100644
--- a/lib/gssapi/gssapi/gssapi_krb5.h
+++ b/lib/gssapi/gssapi/gssapi_krb5.h
@@ -73,6 +73,7 @@ extern gss_OID GSS_KRB5_EXPORT_LUCID_CONTEXT_V1_X;
 extern gss_OID GSS_KRB5_GET_SUBKEY_X;
 extern gss_OID GSS_KRB5_GET_INITIATOR_SUBKEY_X;
 extern gss_OID GSS_KRB5_GET_ACCEPTOR_SUBKEY_X;
+extern gss_OID GSS_KRB5_GET_AUTHTIME_X;
 /* Extensions creds */
 extern gss_OID GSS_KRB5_IMPORT_CRED_X;
 
diff --git a/lib/gssapi/krb5/external.c b/lib/gssapi/krb5/external.c
index 6734ba135..9b4481f02 100644
--- a/lib/gssapi/krb5/external.c
+++ b/lib/gssapi/krb5/external.c
@@ -334,6 +334,12 @@ static gss_OID_desc gss_krb5_send_to_kdc_x_desc =
 
 gss_OID GSS_KRB5_SEND_TO_KDC_X = &gss_krb5_send_to_kdc_x_desc;
 
+/* 1.2.752.43.13.12 */
+static gss_OID_desc gss_krb5_get_authtime_x_desc =
+{6, rk_UNCONST("\x2a\x85\x70\x2b\x0d\x0c")};
+
+gss_OID GSS_KRB5_GET_AUTHTIME_X = &gss_krb5_get_authtime_x_desc;
+
 /* 1.2.752.43.14.1 */
 static gss_OID_desc gss_sasl_digest_md5_mechanism_desc =
 {6, rk_UNCONST("\x2a\x85\x70\x2b\x0e\x01") };