allow to serialize the "build" section

1 files changed, 5 insertions, 0 deletions

diff --git a/src/config.rs b/src/config.rs
index 91d40300..14a13ce3 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -352,6 +352,11 @@ impl Serialize for Config {
         let book_config = Value::try_from(&self.book).expect("should always be serializable");
         table.insert("book", book_config);
 
+        if self.build != BuildConfig::default() {
+            let build_config = Value::try_from(&self.build).expect("should always be serializable");
+            table.insert("build", build_config);
+        }
+
         if self.rust != RustConfig::default() {
             let rust_config = Value::try_from(&self.rust).expect("should always be serializable");
             table.insert("rust", rust_config);