diff --git a/pkgs/tools/misc/arp-scan/default.nix b/pkgs/tools/misc/arp-scan/default.nix
index 1b516bc746d..50915ebf720 100644
--- a/pkgs/tools/misc/arp-scan/default.nix
+++ b/pkgs/tools/misc/arp-scan/default.nix
@@ -37,5 +37,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl3;
     platforms = platforms.linux ++ platforms.darwin;
     maintainers = with maintainers; [ bjornfor mikoim r-burns ];
+    mainProgram = "arp-scan";
   };
 }