diff --git a/pkgs/tools/X11/xsettingsd/default.nix b/pkgs/tools/X11/xsettingsd/default.nix
index 0fe260e3db1e..d0b7c61e710d 100644
--- a/pkgs/tools/X11/xsettingsd/default.nix
+++ b/pkgs/tools/X11/xsettingsd/default.nix
@@ -27,5 +27,6 @@ stdenv.mkDerivation rec {
     license = licenses.bsd3;
     maintainers = with maintainers; [ romildo ];
     platforms = platforms.linux;
+    mainProgram = "xsettingsd";
   };
 }