diff --git a/battle-engine.js b/battle-engine.js
index 9bc459d259..84d8462b62 100644
--- a/battle-engine.js
+++ b/battle-engine.js
@@ -744,7 +744,7 @@ BattlePokemon = (function () {
 			this.battle.singleEvent('Copy', this.getVolatile(i), this.volatiles[i], this);
 		}
 	};
-	BattlePokemon.prototype.transformInto = function (pokemon, user) {
+	BattlePokemon.prototype.transformInto = function (pokemon, user, effect) {
 		var template = pokemon.template;
 		if (pokemon.fainted || pokemon.illusion || (pokemon.volatiles['substitute'] && this.battle.gen >= 5)) {
 			return false;
@@ -793,7 +793,11 @@ BattlePokemon = (function () {
 		for (var j in pokemon.boosts) {
 			this.boosts[j] = pokemon.boosts[j];
 		}
-		this.battle.add('-transform', this, pokemon);
+		if (effect) {
+			this.battle.add('-transform', this, pokemon, '[from] ' + effect);
+		} else {
+			this.battle.add('-transform', this, pokemon);
+		}
 		this.setAbility(pokemon.ability);
 		this.update();
 		return true;
diff --git a/data/abilities.js b/data/abilities.js
index c0aa238f26..602400a556 100644
--- a/data/abilities.js
+++ b/data/abilities.js
@@ -1175,8 +1175,7 @@ exports.BattleAbilities = {
 		onStart: function (pokemon) {
 			var target = pokemon.side.foe.active[pokemon.side.foe.active.length - 1 - pokemon.position];
 			if (target) {
-				this.add('-ability', pokemon, 'Imposter');
-				pokemon.transformInto(target, pokemon);
+				pokemon.transformInto(target, pokemon, this.getAbility('imposter'));
 			}
 		},
 		id: "imposter",