diff --git a/pkgs/applications/networking/browsers/dillong/default.nix b/pkgs/applications/networking/browsers/dillong/default.nix
index 41c72fddef4c..365b1119f96b 100644
--- a/pkgs/applications/networking/browsers/dillong/default.nix
+++ b/pkgs/applications/networking/browsers/dillong/default.nix
@@ -53,5 +53,6 @@ stdenv.mkDerivation {
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
     maintainers = with maintainers; [ fgaz ];
+    mainProgram = "dillo";
   };
 }