diff --git a/bin/asdf-builder b/bin/asdf-builder
index 603014348b8c9a6a30e51317acc96db85ba5a391..3137caa22b081e7f140ff5d0ca83be5bd086eac4 100755
--- a/bin/asdf-builder
+++ b/bin/asdf-builder
@@ -102,7 +102,7 @@
                (system-source-directory sys)
                :want-absolute t :want-directory t))
          (components
-           (asdf::required-components
+           (required-components
             sys :other-systems nil
             :goal-operation 'load-op
             :keep-operation 'load-op