diff --git a/README.md b/README.md
index 20d6311..4a47e58 100644
--- a/README.md
+++ b/README.md
@@ -115,8 +115,8 @@ tmx_data = load_pygame("desert.tmx")
 
 # Make the scrolling layer
 map_layer = pyscroll.BufferedRenderer(
-    map_data=pyscroll.TiledMapData(tmx_data),
-    screen_size=(400,400),
+    data=pyscroll.TiledMapData(tmx_data),
+    size=(400,400),
 )
 
 # make the pygame SpriteGroup with a scrolling map