diff --git a/piet-scene/src/scene/blend.rs b/piet-scene/src/scene/blend.rs
index 7edc6cd..09b6e50 100644
--- a/piet-scene/src/scene/blend.rs
+++ b/piet-scene/src/scene/blend.rs
@@ -53,8 +53,7 @@ pub enum Compose {
     DestAtop = 10,
     Xor = 11,
     Plus = 12,
-    PlusDarker = 13,
-    PlusLighter = 14,
+    PlusLighter = 13,
 }
 
 /// Blend mode consisting of mixing and composition functions.