diff --git a/Userland/Services/WindowServer/ClientConnection.cpp b/Userland/Services/WindowServer/ClientConnection.cpp
index 947b25c8f5..3fdce5cd6c 100644
--- a/Userland/Services/WindowServer/ClientConnection.cpp
+++ b/Userland/Services/WindowServer/ClientConnection.cpp
@@ -892,6 +892,7 @@ void ClientConnection::may_have_become_unresponsive()
     m_ping_timer = Core::Timer::create_single_shot(1000, [this] {
         set_unresponsive(true);
     });
+    m_ping_timer->start();
 }
 
 void ClientConnection::did_become_responsive()