1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/compilers/as31/default.nix b/nixpkgs/pkgs/development/compilers/as31/default.nix
index c76b8a03312e..9cff12dd306d 100644
--- a/nixpkgs/pkgs/development/compilers/as31/default.nix
+++ b/nixpkgs/pkgs/development/compilers/as31/default.nix
@@ -36,6 +36,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     homepage = "http://wiki.erazor-zone.de/wiki:projects:linux:as31";
     description = "An 8031/8051 assembler";
+    mainProgram = "as31";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ AndersonTorres ];
     platforms = platforms.unix;