diff --git a/Userland/Libraries/LibWeb/HighResolutionTime/Performance.cpp b/Userland/Libraries/LibWeb/HighResolutionTime/Performance.cpp
index 885bb5c5307..865300f0d2d 100644
--- a/Userland/Libraries/LibWeb/HighResolutionTime/Performance.cpp
+++ b/Userland/Libraries/LibWeb/HighResolutionTime/Performance.cpp
@@ -23,6 +23,7 @@ JS_DEFINE_ALLOCATOR(Performance);
 Performance::Performance(HTML::Window& window)
     : DOM::EventTarget(window.realm())
     , m_window(window)
+    , m_timer(Core::TimerType::Precise)
 {
     m_timer.start();
 }