diff --git a/pkgs/by-name/ke/kexec-tools/package.nix b/pkgs/by-name/ke/kexec-tools/package.nix
index f546ac0e3747..480503252afc 100644
--- a/pkgs/by-name/ke/kexec-tools/package.nix
+++ b/pkgs/by-name/ke/kexec-tools/package.nix
@@ -62,5 +62,6 @@ stdenv.mkDerivation rec {
       "sparc64-linux"
     ];
     license = licenses.gpl2Only;
+    mainProgram = "kexec";
   };
 }