diff --git a/etc/spack/repos.yaml b/etc/spack/repos.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..2d4ff54ce6d2bf88b1200d3af727d448dacd0ec0
--- /dev/null
+++ b/etc/spack/repos.yaml
@@ -0,0 +1,8 @@
+# -------------------------------------------------------------------------
+# This is the default spack repository configuration.
+#
+# Changes to this file will affect all users of this spack install,
+# although users can override these settings in their ~/.spack/repos.yaml.
+# -------------------------------------------------------------------------
+repos:
+  - $spack/var/spack/repos/builtin