diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 18ea035fe..08336f36f 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.4.0-1"
-export PIKA_PACKAGE_NAME="php-composer-class-map-generator"
+export PIKA_PACKAGE_VERSION="0.18.1-1"
+export PIKA_PACKAGE_NAME="rust-gtk-0.18"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"