1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/applications/science/astronomy/celestia/default.nix b/nixpkgs/pkgs/applications/science/astronomy/celestia/default.nix
index d9130223e836..8b40196fdbff 100644
--- a/nixpkgs/pkgs/applications/science/astronomy/celestia/default.nix
+++ b/nixpkgs/pkgs/applications/science/astronomy/celestia/default.nix
@@ -29,6 +29,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     homepage = "https://celestia.space/";
     description = "Real-time 3D simulation of space";
+    mainProgram = "celestia";
     changelog = "https://github.com/CelestiaProject/Celestia/releases/tag/${version}";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ hjones2199 ];