diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 84d406c45..002197d29 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.5.5-2"
-export PIKA_PACKAGE_NAME="libseccomp"
+export PIKA_PACKAGE_VERSION="20131206+dfsg-21"
+export PIKA_PACKAGE_NAME="gerris"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"