From 39b87fb98bdb0dcfb080e2041eaddeb7a8ecc82c Mon Sep 17 00:00:00 2001
From: Charlotte McElwain <charlotte.c.mcelwain@gmail.com>
Date: Fri, 15 Sep 2023 23:13:08 -0700
Subject: [PATCH] Fixes #33. Add missing derive_builder attr to fallback to
 default fields.

---
 protocol_codegen/src/generate_messages/generate.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/protocol_codegen/src/generate_messages/generate.rs b/protocol_codegen/src/generate_messages/generate.rs
index 70c24df..f1f7a8b 100644
--- a/protocol_codegen/src/generate_messages/generate.rs
+++ b/protocol_codegen/src/generate_messages/generate.rs
@@ -996,6 +996,7 @@ fn write_struct_def<W: Write>(
         w,
         "#[derive(Debug, Clone, PartialEq, derive_builder::Builder)]"
     )?;
+    writeln!(w, "#[builder(default)]")?;
     write!(w, "pub struct {} ", name)?;
     w.block(|w| {
         for prepared_field in &prepared_fields {