diff --git a/gnu/packages/heads.scm b/gnu/packages/heads.scm
index d5e36b9b3c..212849f2a9 100644
--- a/gnu/packages/heads.scm
+++ b/gnu/packages/heads.scm
@@ -172,6 +172,7 @@ (define-public heads-dev-cpio
     (build-system trivial-build-system)
     (arguments
      `(#:modules ((guix build utils)
+                  (guix build syscalls)
                   (guix cpio))
        #:builder (begin
                    (use-modules (guix build utils)