diff --git a/pkgs/development/compilers/gleam/default.nix b/pkgs/development/compilers/gleam/default.nix
index 706a4f254328..eacd38ae7bd6 100644
--- a/pkgs/development/compilers/gleam/default.nix
+++ b/pkgs/development/compilers/gleam/default.nix
@@ -31,8 +31,6 @@ rustPlatform.buildRustPackage rec {
 
   passthru.updateScript = nix-update-script { };
 
-  passthru.updateScript = nix-update-script { };
-
   meta = with lib; {
     description = "A statically typed language for the Erlang VM";
     homepage = "https://gleam.run/";