diff --git a/pkgs/tools/networking/bsd-finger/default.nix b/pkgs/tools/networking/bsd-finger/default.nix
index 48e64b202c6e..9d4c0267c76a 100644
--- a/pkgs/tools/networking/bsd-finger/default.nix
+++ b/pkgs/tools/networking/bsd-finger/default.nix
@@ -42,6 +42,7 @@ stdenv.mkDerivation rec {
       else "Remote user information server";
     platforms = platforms.linux;
     license = licenses.bsdOriginal;
+    mainProgram = "finger";
   };
 }
 # TODO: multiple outputs (manpage)