diff --git a/etc/spack/defaults/packages.yaml b/etc/spack/defaults/packages.yaml
index e7601585542..961fb157f00 100644
--- a/etc/spack/defaults/packages.yaml
+++ b/etc/spack/defaults/packages.yaml
@@ -39,3 +39,5 @@ packages:
       scalapack: [netlib-scalapack]
       szip: [libszip, libaec]
       tbb: [intel-tbb]
+      unwind: [libunwind]
+