diff --git a/res/cardsfolder/g/gravity_well.txt b/res/cardsfolder/g/gravity_well.txt
index 31af85adefe..dd34453999d 100644
--- a/res/cardsfolder/g/gravity_well.txt
+++ b/res/cardsfolder/g/gravity_well.txt
@@ -2,7 +2,7 @@ Name:Gravity Well
 ManaCost:1 G G
 Types:Enchantment
 Text:no text
-T:Mode$ Attacks | ValidCard$ Creature.withFlying | Execute$ Debuff | TriggerDescription$ Whenever a creature with flying attacks, it loses flying until end of turn.
+T:Mode$ Attacks | ValidCard$ Creature.withFlying | Execute$ Debuff | TriggerZones$ Battlefield | TriggerDescription$ Whenever a creature with flying attacks, it loses flying until end of turn.
 SVar:Debuff:AB$Debuff | Cost$ 0 | Defined$ TriggeredAttacker | Keywords$ Flying
 SVar:Picture:http://www.wizards.com/global/images/magic/general/gravity_well.jpg
 SetInfo:ROE|Uncommon|http://magiccards.info/scans/en/roe/185.jpg