diff --git a/show/dance2018/effect.n3 b/show/dance2018/effect.n3
--- a/show/dance2018/effect.n3
+++ b/show/dance2018/effect.n3
@@ -24,6 +24,7 @@ effect:pulseRainbow a :Effect; rdfs:labe
 effect:orangeSearch a :Effect; :publishAttr :strength ; :group "anim".
 effect:qsweep a :Effect; :publishAttr :strength ; :group "anim".
 effect:chase1 a :Effect; :publishAttr :strength ; :group "anim".
+effect:chase2 a :Effect; :publishAttr :strength ; :group "anim".
 
 effect:lightning a :Effect; :publishAttr :strength ; :group "main"; :order 7.