--- a/net/minecraft/world/item/WrittenBookItem.java +++ b/net/minecraft/world/item/WrittenBookItem.java @@ -41,7 +_,7 @@ public static boolean resolveBookComponents(ItemStack bookStack, CommandSourceStack resolvingSource, @Nullable Player resolvingPlayer) { WrittenBookContent writtenBookContent = bookStack.get(DataComponents.WRITTEN_BOOK_CONTENT); - if (writtenBookContent != null && !writtenBookContent.resolved()) { + if (io.papermc.paper.configuration.GlobalConfiguration.get().itemValidation.resolveSelectorsInBooks && writtenBookContent != null && !writtenBookContent.resolved()) { // Paper - Disable component selector resolving in books by default WrittenBookContent writtenBookContent1 = writtenBookContent.resolve(resolvingSource, resolvingPlayer); if (writtenBookContent1 != null) { bookStack.set(DataComponents.WRITTEN_BOOK_CONTENT, writtenBookContent1);