diff --git a/source/behavior/entities/1.8.0/components/minecraft.attack.json b/source/behavior/entities/1.8.0/components/minecraft.attack.json
index fa68e42a..14f69df1 100644
--- a/source/behavior/entities/1.8.0/components/minecraft.attack.json
+++ b/source/behavior/entities/1.8.0/components/minecraft.attack.json
@@ -7,19 +7,20 @@
   "required": ["damage"],
   "properties": {
     "damage": {
-      "description": "Range of the random amount of damage the melee attack deals. A negative value can heal the entity instead of hurting it",
+      "description": "Range of the random amount of damage the melee attack deals. A negative value can heal the entity instead of hurting it.",
       "$ref": "../types/range_number_type.json",
       "title": "Damage"
     },
     "effect_name": {
       "type": "string",
-      "description": "Identifier of the status ailment to apply to an entity attacked by this entity's melee attack",
+      "description": "Identifier of the status ailment to apply to an entity attacked by this entity's melee attack.",
       "examples": ["wither", "hunger"],
       "title": "Effect Name"
     },
     "effect_duration": {
       "type": "number",
-      "description": "Duration in seconds of the status ailment applied to the damaged entity",
+      "default": 1,
+      "description": "Duration in seconds of the status ailment applied to the damaged entity.",
       "title": "Effect Duration"
     }
   }