diff --git a/pkgs/development/compilers/lobster/default.nix b/pkgs/development/compilers/lobster/default.nix
index 62867f296d72..b87bec7ea2d9 100644
--- a/pkgs/development/compilers/lobster/default.nix
+++ b/pkgs/development/compilers/lobster/default.nix
@@ -1,5 +1,6 @@
 { stdenv
 , fetchFromGitHub
+, unstableGitUpdater
 , cmake
 , callPackage
 
@@ -46,8 +47,9 @@ stdenv.mkDerivation rec {
   preConfigure = "cd dev";
   enableParallelBuilding = true;
 
-  passthru.tests = {
-    can-run-hello-world = callPackage ./test-can-run-hello-world.nix {};
+  passthru = {
+    tests.can-run-hello-world = callPackage ./test-can-run-hello-world.nix {};
+    updateScript = unstableGitUpdater { };
   };
 
   meta = with stdenv.lib; {
@@ -63,4 +65,3 @@ stdenv.mkDerivation rec {
     platforms = platforms.all;
   };
 }
-