diff --git a/gemp-lotr/gemp-lotr-cards/src/main/resources/cards/official/set17/set17-Isengard.hjson b/gemp-lotr/gemp-lotr-cards/src/main/resources/cards/official/set17/set17-Isengard.hjson
index 8ebabbd5e..7acc85002 100644
--- a/gemp-lotr/gemp-lotr-cards/src/main/resources/cards/official/set17/set17-Isengard.hjson
+++ b/gemp-lotr/gemp-lotr-cards/src/main/resources/cards/official/set17/set17-Isengard.hjson
@@ -87,7 +87,7 @@
 			{
 				type: aidCost
 				cost: {
-					type: addTwilight
+					type: removeTwilight
 				}
 			}
 			{