1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/tools/tradcpp/default.nix b/nixpkgs/pkgs/development/tools/tradcpp/default.nix
index 7d2606eba84e..73d0cf5e81a4 100644
--- a/nixpkgs/pkgs/development/tools/tradcpp/default.nix
+++ b/nixpkgs/pkgs/development/tools/tradcpp/default.nix
@@ -20,6 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "A traditional (K&R-style) C macro preprocessor";
+    mainProgram = "tradcpp";
     platforms = platforms.all;
     license = licenses.bsd2;
   };