diff --git a/components/config/src/config/mod.rs b/components/config/src/config/mod.rs
index cc6b858c..37eba3e4 100644
--- a/components/config/src/config/mod.rs
+++ b/components/config/src/config/mod.rs
@@ -97,6 +97,7 @@ pub struct SerializedConfig<'a> {
     title: &'a Option<String>,
     description: &'a Option<String>,
     languages: HashMap<&'a String, &'a languages::LanguageOptions>,
+    default_language: &'a str,
     generate_feed: bool,
     feed_filename: &'a str,
     taxonomies: &'a [taxonomies::Taxonomy],
@@ -291,6 +292,7 @@ impl Config {
             title: &options.title,
             description: &options.description,
             languages: self.languages.iter().filter(|(k, _)| k.as_str() != lang).collect(),
+            default_language: &self.default_language,
             generate_feed: options.generate_feed,
             feed_filename: &options.feed_filename,
             taxonomies: &options.taxonomies,