diff --git a/Userland/Services/Taskbar/TaskbarWindow.cpp b/Userland/Services/Taskbar/TaskbarWindow.cpp
index 01d2835b3e..fdcdf48c4e 100644
--- a/Userland/Services/Taskbar/TaskbarWindow.cpp
+++ b/Userland/Services/Taskbar/TaskbarWindow.cpp
@@ -164,7 +164,7 @@ void TaskbarWindow::update_applet_area()
     main_widget()->do_layout();
     Gfx::IntRect new_rect { {}, m_applet_area_size };
     new_rect.center_within(m_applet_area_container->screen_relative_rect());
-    GUI::WindowManagerServerConnection::the().set_applet_area_position(new_rect.location());
+    GUI::WindowManagerServerConnection::the().async_set_applet_area_position(new_rect.location());
 }
 
 NonnullRefPtr<GUI::Button> TaskbarWindow::create_button(const WindowIdentifier& identifier)
diff --git a/Userland/Services/WindowServer/WindowManagerServer.ipc b/Userland/Services/WindowServer/WindowManagerServer.ipc
index 17ee07aba9..b1a0140a60 100644
--- a/Userland/Services/WindowServer/WindowManagerServer.ipc
+++ b/Userland/Services/WindowServer/WindowManagerServer.ipc
@@ -1,12 +1,12 @@
 endpoint WindowManagerServer
 {
-    set_event_mask(u32 event_mask) => ()
-    set_manager_window(i32 window_id) => ()
+    set_event_mask(u32 event_mask) =|
+    set_manager_window(i32 window_id) =|
 
     set_active_window(i32 client_id, i32 window_id) =|
     set_window_minimized(i32 client_id, i32 window_id, bool minimized) =|
     start_window_resize(i32 client_id, i32 window_id) =|
     popup_window_menu(i32 client_id, i32 window_id, Gfx::IntPoint screen_position) =|
     set_window_taskbar_rect(i32 client_id, i32 window_id, Gfx::IntRect rect) =|
-    set_applet_area_position(Gfx::IntPoint position) => ()
+    set_applet_area_position(Gfx::IntPoint position) =|
 }