diff --git a/mrbayes-mpi/lilac.yaml b/mrbayes-mpi/lilac.yaml
index e0087b5b00..f00dbcbdca 100644
--- a/mrbayes-mpi/lilac.yaml
+++ b/mrbayes-mpi/lilac.yaml
@@ -1,4 +1,4 @@
-build_prefix: extra-x86_64
+build_prefix: multilib
 maintainers:
   - github: starsareintherose
     email: starsareintherose@outlook.com