diff --git a/include/SFML/Window/Window.hpp b/include/SFML/Window/Window.hpp
index 21bb2c55..89ebc937 100644
--- a/include/SFML/Window/Window.hpp
+++ b/include/SFML/Window/Window.hpp
@@ -274,7 +274,7 @@ public :
     /// \see getSize
     ///
     ////////////////////////////////////////////////////////////
-    void setSize(const Vector2u size);
+    void setSize(const Vector2u& size);
 
     ////////////////////////////////////////////////////////////
     /// \brief Change the title of the window
diff --git a/src/SFML/Window/Window.cpp b/src/SFML/Window/Window.cpp
index 0970c986..658c7ff4 100644
--- a/src/SFML/Window/Window.cpp
+++ b/src/SFML/Window/Window.cpp
@@ -231,10 +231,19 @@ Vector2u Window::getSize() const
 
 
 ////////////////////////////////////////////////////////////
-void Window::setSize(const Vector2u size)
+void Window::setSize(const Vector2u& size)
 {
     if (m_impl)
+    {
         m_impl->setSize(size);
+
+        // Cache the new size
+        m_size.x = size.x;
+        m_size.y = size.y;
+
+        // Notify the derived class
+        onResize();
+    }
 }