diff --git a/pkgs/applications/science/math/eigenmath/default.nix b/pkgs/applications/science/math/eigenmath/default.nix
index ddeba369366e..c7d78e4c822e 100644
--- a/pkgs/applications/science/math/eigenmath/default.nix
+++ b/pkgs/applications/science/math/eigenmath/default.nix
@@ -2,6 +2,7 @@
 , stdenv
 , fetchFromGitHub
 , fetchpatch
+, unstableGitUpdater
 }:
 
 stdenv.mkDerivation rec {
@@ -30,6 +31,10 @@ stdenv.mkDerivation rec {
     runHook postInstall
   '';
 
+  passthru = {
+    updateScript = unstableGitUpdater { };
+  };
+
   meta = with lib;{
     description = "Computer algebra system written in C";
     homepage = "https://georgeweigt.github.io";