diff --git a/lib/IGameCallback.h b/lib/IGameCallback.h
index 1c5c7b4b9..cdbb40209 100644
--- a/lib/IGameCallback.h
+++ b/lib/IGameCallback.h
@@ -20,7 +20,6 @@ struct SetMovePoints;
 struct GiveBonus;
 struct BlockingDialog;
 struct TeleportDialog;
-class MetaString;
 struct StackLocation;
 struct ArtifactLocation;
 class CCreatureSet;