diff --git a/docs/src/howto/polygons.md b/docs/src/howto/polygons.md
index 89e9c19c..99522004 100644
--- a/docs/src/howto/polygons.md
+++ b/docs/src/howto/polygons.md
@@ -71,7 +71,7 @@ for (pos, n) in tiles
 
         circle(Point(0, 0), 4, action=:fill)
 
-        label.([string(i) for i in 1:n], slope.(Ref(O), plist), plist, offset=5)
+        label.([string(i) for i in 1:n], slope.(O, plist), plist, offset=5)
     end
 end
 
@@ -938,7 +938,7 @@ origin() # hide
 setline(0.5)
 
 @layer begin
-    rule.(Ref(O), (0, (π / 2)))
+    rule.(O, (0, (π / 2)))
 end
 
 P = O