diff --git a/src/game/Towers.cpp b/src/game/Towers.cpp
index 0ebc959..0f179c5 100644
--- a/src/game/Towers.cpp
+++ b/src/game/Towers.cpp
@@ -229,7 +229,8 @@ void IceTower::tick(std::uint64_t delta, World* world) {
         for (MobPtr mob : world->getMobList()) {
             if (isMobInRange(mob)) {
                 mob->addEffect(EffectType::Slowness, 1, this);    // slowness for 1s every second
-                world->notifyListeners(&WorldListener::OnMobDamage, mob, damage, this);
+                if(damage > 0)
+                    world->notifyListeners(&WorldListener::OnMobDamage, mob, damage, this);
                 m_Timer.applyCooldown();
             }
         }