diff --git a/projects/rust-lang.org/package.yml b/projects/rust-lang.org/package.yml
index 612b3e5c..053b8eca 100644
--- a/projects/rust-lang.org/package.yml
+++ b/projects/rust-lang.org/package.yml
@@ -75,6 +75,7 @@ build:
       - --enable-ninja
       - --disable-docs # docs are online
       - --tools=clippy,rustdoc,rustfmt,analysis
+      - --sysconfdir={{ prefix }}/etc
     tools:
       - clippy
       - rustfmt