diff --git a/lib/krb5/keytab_memory.c b/lib/krb5/keytab_memory.c
index defd10d67..ec5da9a26 100644
--- a/lib/krb5/keytab_memory.c
+++ b/lib/krb5/keytab_memory.c
@@ -228,6 +228,7 @@ const krb5_kt_ops krb5_mkt_ops = {
     mkt_resolve,
     mkt_get_name,
     mkt_close,
+    NULL, /* destroy */
     NULL, /* get */
     mkt_start_seq_get,
     mkt_next_entry,