diff --git a/src/main/java/tconstruct/modifiers/armor/ActiveTinkerArmor.java b/src/main/java/tconstruct/modifiers/armor/ActiveTinkerArmor.java
index b4c3c4bb04c..f8dafd30b4c 100644
--- a/src/main/java/tconstruct/modifiers/armor/ActiveTinkerArmor.java
+++ b/src/main/java/tconstruct/modifiers/armor/ActiveTinkerArmor.java
@@ -23,8 +23,11 @@ public void onArmorTick (World world, EntityPlayer player, ItemStack itemStack,
             if (TConstruct.random.nextInt(check) < chance)
             {
                 int current = tag.getInteger("Damage");
-                if (current > 0)
-                    tag.setInteger("Damage", current - 1);
+                if (current > 0) {
+                    current--;
+                    tag.setInteger("Damage", current);
+                    itemStack.setItemDamage(current);
+                }
             }
         }
         if (type == ArmorPart.Head)