diff --git a/pkgs/data/documentation/scheme-manpages/default.nix b/pkgs/data/documentation/scheme-manpages/default.nix
index 8ff9344b3f52..7896540bb6bd 100644
--- a/pkgs/data/documentation/scheme-manpages/default.nix
+++ b/pkgs/data/documentation/scheme-manpages/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenvNoCC, fetchFromGitHub }:
+{ lib, stdenvNoCC, fetchFromGitHub, unstableGitUpdater }:
 
 stdenvNoCC.mkDerivation rec {
   pname = "scheme-manpages";
@@ -18,6 +18,8 @@ stdenvNoCC.mkDerivation rec {
     cp -r man3/ man7/ $out/share/man/
   '';
 
+  passthru.updateScript = unstableGitUpdater { };
+
   meta = with lib; {
     description = "Unix manual pages for R6RS and R7RS";
     homepage = "https://github.com/schemedoc/manpages";