diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 74dd42365..4039210f4 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="6.12-1"
-export PIKA_PACKAGE_NAME="btrfs-progs"
+export PIKA_PACKAGE_VERSION="0.2.99-1"
+export PIKA_PACKAGE_NAME="rust-wasm-bindgen-backend"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"