diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index b37daf577..d55252ad8 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.5-15"
-export PIKA_PACKAGE_NAME="cdecl"
+export PIKA_PACKAGE_VERSION="5.15.15-3"
+export PIKA_PACKAGE_NAME="qttools-opensource-src"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"