diff --git a/src/js/health.js b/src/js/health.js
index 1bb8c2aa8ded0a19a1404ffb76d564e555be0904..c058f34063586a788f94fe8834ee8993abb03805 100644
--- a/src/js/health.js
+++ b/src/js/health.js
@@ -43,7 +43,7 @@ window.setHealth = function setHealth(slave, condition=-101, shortDamage=-1, lon
         H.shortDamage = shortDamage;
     }
     if (longDamage < 0) {
-        H.longDamage - Math.max(normalRandInt(0, 3), 0);
+        H.longDamage = Math.max(normalRandInt(0, 3), 0);
     } else {
         H.longDamage = longDamage;
     }