diff --git a/Mage.Sets/src/mage/cards/h/HardenedScales.java b/Mage.Sets/src/mage/cards/h/HardenedScales.java
index 83c2386bbac..61b5dbdbde5 100644
--- a/Mage.Sets/src/mage/cards/h/HardenedScales.java
+++ b/Mage.Sets/src/mage/cards/h/HardenedScales.java
@@ -81,7 +81,9 @@ class HardenedScalesEffect extends ReplacementEffectImpl {
     @Override
     public boolean replaceEvent(GameEvent event, Ability source, Game game) {
         int amount = event.getAmount();
-        event.setAmount(amount + 1);
+        if (amount >= 1) {
+            event.setAmount(amount + 1);
+        }        
         return false;
     }