diff --git a/build-aux/cuirass/gnu-system.scm b/build-aux/cuirass/gnu-system.scm
index c88267b9d8..f545ba03bc 100644
--- a/build-aux/cuirass/gnu-system.scm
+++ b/build-aux/cuirass/gnu-system.scm
@@ -44,4 +44,6 @@
     ((? license?) `((name . (license-name o))
                     (uri . ,(license-uri o))
                     (comment . ,(license-comment o))))
+    ((lst ...)
+     (map entry->sexp-entry lst))
     (_ o)))