diff --git a/doc/files/opencanvasspritelayer.txt b/doc/files/opencanvasspritelayer.txt
index 3635a7e..0ba5a75 100644
--- a/doc/files/opencanvasspritelayer.txt
+++ b/doc/files/opencanvasspritelayer.txt
@@ -1,5 +1,5 @@
 #title OpenCanvasSpriteLayer [RCBasic Doc]
-#header function OpenCanvasSpriteLayer(w, h, viewport_x, viewport_y, viewport_w, viewport_h)
+#header function OpenCanvasSpriteLayer(viewport_x, viewport_y, viewport_w, viewport_h)
 
 Returns a sprite layer. These canvases are used for rendering sprites with the integrated physics engine.