diff --git a/packages/entity/traits/alive.trait.js b/packages/entity/traits/alive.trait.js
index a46b540..ba70b36 100644
--- a/packages/entity/traits/alive.trait.js
+++ b/packages/entity/traits/alive.trait.js
@@ -113,12 +113,12 @@ export class Alive extends decorate(Trait) {
   listeners() {
     return {
 
-      tookDamage: (damage, source) => {
-        if (damage.damageSpec.power > 0) {
-          this.entity.life -= damage.amount;
+      tookHarm: (harm, source) => {
+        if (harm.harmSpec.power > 0) {
+          this.entity.life -= harm.amount;
         }
         else {
-          this.entity.life += damage.amount;
+          this.entity.life += harm.amount;
         }
         // Clamp health between 0 and max.
         this.entity.life = Math.min(