diff --git a/mods/survival.js b/mods/survival.js
index d8f50944..bbbdef5b 100644
--- a/mods/survival.js
+++ b/mods/survival.js
@@ -187,6 +187,7 @@ elementWorth = {
     "laser": 0,
     "liquid_light": 0.1,
     "flash": 0,
+    "radiation": 0,
     "petal": -1,
     "cell": -1,
     "cancer": -1,