diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 5e7db608b..54eb77192 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4.3.5+dfsg-1"
-export PIKA_PACKAGE_NAME="spip"
+export PIKA_PACKAGE_VERSION="2.15-4"
+export PIKA_PACKAGE_NAME="ykclient"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"