diff --git a/squirrelbattle/interfaces.py b/squirrelbattle/interfaces.py
index c71d7c8..ea59a04 100644
--- a/squirrelbattle/interfaces.py
+++ b/squirrelbattle/interfaces.py
@@ -774,6 +774,7 @@ class FightingEntity(Entity):
         The entity takes damage from the attacker
         based on their respective stats.
         """
+        damage = 0
         if amount != 0 :
             damage = max(1, amount - self.constitution)
         self.health -= damage