diff --git a/lib/krb5/auth_context.c b/lib/krb5/auth_context.c
index 3cba484e1..cf3566ed8 100644
--- a/lib/krb5/auth_context.c
+++ b/lib/krb5/auth_context.c
@@ -84,6 +84,7 @@ krb5_auth_con_free(krb5_context context,
     }
     free_EncryptionKey(&auth_context->key);
     free_EncryptionKey(&auth_context->remote_subkey);
+    free_EncryptionKey(&auth_context->local_subkey);
     free (auth_context);
     return 0;
 }