diff --git a/lua/core/skill_skeleton.lua b/lua/core/skill_skeleton.lua
index ba2eae36be1aef1ada0dda551f1b338db08352c6..a126cad20652e5917b97bf40f7c3b9f4a0853d9a 100644
--- a/lua/core/skill_skeleton.lua
+++ b/lua/core/skill_skeleton.lua
@@ -520,7 +520,9 @@ function SkillSkeleton:createViewAsSkill(_skill, idx, key, attr, spec)
 
   if spec.click_count then skill.click_count = spec.click_count end
 
-  skill.enabledAtNullification = spec.enabled_at_nullification
+  if type(spec.enabled_at_nullification) == "function" then
+    skill.enabledAtNullification = spec.enabled_at_nullification
+  end
 
   skill.handly_pile = spec.handly_pile