diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index c217a0248..d0188a39c 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4-8"
-export PIKA_PACKAGE_NAME="blktool"
+export PIKA_PACKAGE_VERSION="0.2.4-1"
+export PIKA_PACKAGE_NAME="rust-numtoa"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"