diff --git a/lib/krb5/krb5.h b/lib/krb5/krb5.h
index 9f131c353..3625232bd 100644
--- a/lib/krb5/krb5.h
+++ b/lib/krb5/krb5.h
@@ -665,6 +665,7 @@ extern const krb5_cc_ops krb5_fcc_ops;
 extern const krb5_cc_ops krb5_mcc_ops;
 
 extern const krb5_kt_ops krb5_fkt_ops;
+extern const krb5_kt_ops krb5_wrfkt_ops;
 extern const krb5_kt_ops krb5_mkt_ops;
 extern const krb5_kt_ops krb5_akf_ops;
 extern const krb5_kt_ops krb4_fkt_ops;