1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/compilers/urn/default.nix b/nixpkgs/pkgs/development/compilers/urn/default.nix
index 66f1bda6d5f9..87e28d9672da 100644
--- a/nixpkgs/pkgs/development/compilers/urn/default.nix
+++ b/nixpkgs/pkgs/development/compilers/urn/default.nix
@@ -52,6 +52,7 @@ stdenv.mkDerivation {
   meta = with lib; {
     homepage = "https://urn-lang.com";
     description = "Yet another Lisp variant which compiles to Lua";
+    mainProgram = "urn";
     license = licenses.bsd3;
     maintainers = with maintainers; [ CrazedProgrammer ];
     platforms = platforms.all;