1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/demjson3/default.nix b/nixpkgs/pkgs/development/python-modules/demjson3/default.nix
index 50668ec38834..6e83b001e6e1 100644
--- a/nixpkgs/pkgs/development/python-modules/demjson3/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/demjson3/default.nix
@@ -27,6 +27,7 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "Encoder/decoder and lint/validator for JSON (JavaScript Object Notation)";
+    mainProgram = "jsonlint";
     homepage = "https://github.com/nielstron/demjson3/";
     license = licenses.lgpl3Plus;
     maintainers = with maintainers; [ fab ];