diff --git a/lib/krb5/context.c b/lib/krb5/context.c
index 924cb5056..502f037e1 100644
--- a/lib/krb5/context.c
+++ b/lib/krb5/context.c
@@ -263,6 +263,7 @@ krb5_free_context(krb5_context context)
 	krb5_closelog(context, context->warn_dest);
     krb5_set_extra_addresses(context, NULL);
     krb5_set_ignore_addresses(context, NULL);
+    krb5_set_send_to_kdc_func(context, NULL);
     if (context->mutex != NULL) {
 	HEIMDAL_MUTEX_destroy(context->mutex);
 	free(context->mutex);