diff --git a/guix/gnu-build-system.scm b/guix/gnu-build-system.scm
index 811ae965ac..a072c173f5 100644
--- a/guix/gnu-build-system.scm
+++ b/guix/gnu-build-system.scm
@@ -33,7 +33,7 @@ (define-module (guix gnu-build-system)
 (define %standard-inputs
   (map (lambda (name)
          (list name (nixpkgs-derivation name)))
-       '("gnutar" "gzip" "bzip2" "xz"
+       '("gnutar" "gzip" "bzip2" "xz" "diffutils" "patch"
          "coreutils" "gnused" "gnugrep" "bash"
          "gcc" "binutils" "gnumake" "glibc")))