diff --git a/terragrunt/accounts/legacy/rustc-ci-prod/terragrunt.hcl b/terragrunt/accounts/legacy/rustc-ci-prod/terragrunt.hcl
index d4ff3b7d..76c1d29f 100644
--- a/terragrunt/accounts/legacy/rustc-ci-prod/terragrunt.hcl
+++ b/terragrunt/accounts/legacy/rustc-ci-prod/terragrunt.hcl
@@ -12,5 +12,5 @@ inputs = {
   caches_bucket    = "rust-lang-ci-sccache2"
   artifacts_bucket = "rust-lang-ci2"
   artifacts_domain = "ci-artifacts.rust-lang.org"
-  caches_domain = "ci-caches.rust-lang.org"
+  caches_domain    = "ci-caches.rust-lang.org"
 }