diff --git a/Userland/Demos/Mandelbrot/Mandelbrot.cpp b/Userland/Demos/Mandelbrot/Mandelbrot.cpp
index 876f91bcbc..69677c817b 100644
--- a/Userland/Demos/Mandelbrot/Mandelbrot.cpp
+++ b/Userland/Demos/Mandelbrot/Mandelbrot.cpp
@@ -398,7 +398,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
 {
     auto app = TRY(GUI::Application::create(arguments));
 
-    TRY(Core::System::pledge("stdio thread recvfd sendfd rpath wpath cpath"));
+    TRY(Core::System::pledge("stdio thread recvfd sendfd rpath unix wpath cpath"));
 
 #if 0
     TRY(Core::System::unveil("/res", "r"));