diff --git a/pkgs/by-name/vi/vintagestory/package.nix b/pkgs/by-name/vi/vintagestory/package.nix
index 49178fa33008..3e2ad5e408e8 100644
--- a/pkgs/by-name/vi/vintagestory/package.nix
+++ b/pkgs/by-name/vi/vintagestory/package.nix
@@ -103,5 +103,6 @@ stdenv.mkDerivation rec {
       gigglesquid
       niraethm
     ];
+    mainProgram = "vintagestory";
   };
 }