1 files changed, 1 insertions, 0 deletions
diff --git a/pkgs/applications/science/physics/sacrifice/default.nix b/pkgs/applications/science/physics/sacrifice/default.nix
index ec0620d3d8ed..352b65dc700c 100644
--- a/pkgs/applications/science/physics/sacrifice/default.nix
+++ b/pkgs/applications/science/physics/sacrifice/default.nix
@@ -40,6 +40,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "A standalone contribution to AGILe for steering Pythia 8";
+    mainProgram = "run-pythia";
     license     = lib.licenses.gpl2;
     homepage    = "https://agile.hepforge.org/trac/wiki/Sacrifice";
     platforms   = lib.platforms.unix;