diff --git a/guix/transformations.scm b/guix/transformations.scm
index ea8b7a08443..9dfc4402c5c 100644
--- a/guix/transformations.scm
+++ b/guix/transformations.scm
@@ -61,6 +61,8 @@
             tunable-package?
             tuned-package
 
+            package-with-upstream-version
+
             show-transformation-options-help
             transformation-option-key?
             cacheable-transformation-option-key?