diff --git a/pkgs/build-support/dlang/dub-to-nix/default.nix b/pkgs/build-support/dlang/dub-to-nix/default.nix
index e7672023979f..4a148dcfc160 100644
--- a/pkgs/build-support/dlang/dub-to-nix/default.nix
+++ b/pkgs/build-support/dlang/dub-to-nix/default.nix
@@ -19,6 +19,7 @@ runCommand "dub-to-nix"
     version = lib.trivial.release;
     nativeBuildInputs = [ makeWrapper ];
     buildInputs = [ python3 ];
+    meta.license = lib.licenses.mit;
   }
   ''
     install -Dm755 ${./dub-to-nix.py} "$out/bin/dub-to-nix"