diff --git a/tests/builders.scm b/tests/builders.scm
index 0b5577c7a3..2853227465 100644
--- a/tests/builders.scm
+++ b/tests/builders.scm
@@ -25,6 +25,7 @@ (define-module (tests builders)
   #:use-module (guix build gnu-build-system)
   #:use-module (guix build utils)
   #:use-module (guix build-system python)
+  #:use-module (guix grafts)
   #:use-module (guix store)
   #:use-module (guix monads)
   #:use-module (guix utils)