diff --git a/Userland/Libraries/LibWeb/UIEvents/MouseEvent.cpp b/Userland/Libraries/LibWeb/UIEvents/MouseEvent.cpp
index dd6c7a3c65..730c304847 100644
--- a/Userland/Libraries/LibWeb/UIEvents/MouseEvent.cpp
+++ b/Userland/Libraries/LibWeb/UIEvents/MouseEvent.cpp
@@ -10,7 +10,7 @@
 
 namespace Web::UIEvents {
 
-MouseEvent::MouseEvent(const FlyString& event_name, i32 offset_x, i32 offset_y, i32 client_x, i32 client_y)
+MouseEvent::MouseEvent(const FlyString& event_name, double offset_x, double offset_y, double client_x, double client_y)
     : UIEvent(event_name)
     , m_offset_x(offset_x)
     , m_offset_y(offset_y)
diff --git a/Userland/Libraries/LibWeb/UIEvents/MouseEvent.h b/Userland/Libraries/LibWeb/UIEvents/MouseEvent.h
index b214e3d199..b8b8802967 100644
--- a/Userland/Libraries/LibWeb/UIEvents/MouseEvent.h
+++ b/Userland/Libraries/LibWeb/UIEvents/MouseEvent.h
@@ -7,6 +7,7 @@
 #pragma once
 
 #include <AK/TypeCasts.h>
+#include <LibWeb/UIEvents/EventModifier.h>
 #include <LibWeb/UIEvents/UIEvent.h>
 
 namespace Web::UIEvents {
@@ -15,28 +16,28 @@ class MouseEvent final : public UIEvent {
 public:
     using WrapperType = Bindings::MouseEventWrapper;
 
-    static NonnullRefPtr<MouseEvent> create(const FlyString& event_name, i32 offset_x, i32 offset_y, i32 client_x, i32 client_y)
+    static NonnullRefPtr<MouseEvent> create(const FlyString& event_name, double offset_x, double offset_y, double client_x, double client_y)
     {
         return adopt_ref(*new MouseEvent(event_name, offset_x, offset_y, client_x, client_y));
     }
 
     virtual ~MouseEvent() override;
 
-    i32 offset_x() const { return m_offset_x; }
-    i32 offset_y() const { return m_offset_y; }
-    i32 client_x() const { return m_client_x; }
-    i32 client_y() const { return m_client_y; }
+    double offset_x() const { return m_offset_x; }
+    double offset_y() const { return m_offset_y; }
+    double client_x() const { return m_client_x; }
+    double client_y() const { return m_client_y; }
 
 protected:
-    MouseEvent(const FlyString& event_name, i32 offset_x, i32 offset_y, i32 client_x, i32 client_y);
+    MouseEvent(const FlyString& event_name, double offset_x, double offset_y, double client_x, double client_y);
 
 private:
     void set_event_characteristics();
 
-    i32 m_offset_x { 0 };
-    i32 m_offset_y { 0 };
-    i32 m_client_x { 0 };
-    i32 m_client_y { 0 };
+    double m_offset_x { 0 };
+    double m_offset_y { 0 };
+    double m_client_x { 0 };
+    double m_client_y { 0 };
 };
 
 }