diff --git a/src/ciel.lisp b/src/ciel.lisp
index 34a6153..0c5d916 100644
--- a/src/ciel.lisp
+++ b/src/ciel.lisp
@@ -38,6 +38,7 @@ We currently only try this with serapeum. See *deps/serapeum/sequences-hashtable
                            '(:define-package ;; shall we override defpackage?
                              :find-symbol*
                              :format!
+                             :println
                              :symbol-call
                              :not-implemented-error
                              :command-line-arguments))