diff --git a/pkg-def.scm b/pkg-def.scm
index 4f59c74..730c9e2 100644
--- a/pkg-def.scm
+++ b/pkg-def.scm
@@ -55,9 +55,11 @@
 		  (else
 		   (error "Could not figure out libscshldap's name" la-file-name))))))
        (config)
+       (load ,(string-append schemedir "/ffi-tools-rts.scm"))
        (load ,(string-append schemedir "/interfaces.scm"))
        (load ,(string-append schemedir "/packages.scm"))
        (user))))
 
   (install-directory-contents "scheme" 'scheme)
+  (install-file "ffi-tools/ffi-tools-rts.scm" 'scheme)
 )