1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/applications/science/chemistry/siesta/default.nix b/nixpkgs/pkgs/applications/science/chemistry/siesta/default.nix
index c0e0e874cbd6..02586dea2e29 100644
--- a/nixpkgs/pkgs/applications/science/chemistry/siesta/default.nix
+++ b/nixpkgs/pkgs/applications/science/chemistry/siesta/default.nix
@@ -64,6 +64,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "A first-principles materials simulation code using DFT";
+    mainProgram = "siesta";
     longDescription = ''
          SIESTA is both a method and its computer program
          implementation, to perform efficient electronic structure