diff --git a/README.md b/README.md
index 9aaeb3b..87c98f4 100644
--- a/README.md
+++ b/README.md
@@ -2077,7 +2077,7 @@ class Square : Rectangle
     }
 }
 
-Drawable RenderLargeRectangles(Rectangle rectangles)
+Drawable RenderLargeRectangles(Rectangle[] rectangles)
 {
     foreach (rectangle in rectangles)
     {