diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index f2086f5a7..56f5d5ba1 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4:6.2.91-1"
-export PIKA_PACKAGE_NAME="oxygen"
+export PIKA_PACKAGE_VERSION="286"
+export PIKA_PACKAGE_NAME="diffoscope"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"