From ba0707559026b7dacef46de044a0da54ef64d50a Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Mon, 10 Aug 2020 15:06:47 -0700
Subject: [PATCH] Support serializing flattened unit

---
 serde/src/private/ser.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/serde/src/private/ser.rs b/serde/src/private/ser.rs
index 70f33818..eb8cfc98 100644
--- a/serde/src/private/ser.rs
+++ b/serde/src/private/ser.rs
@@ -1124,7 +1124,7 @@ where
     }
 
     fn serialize_unit(self) -> Result<Self::Ok, Self::Error> {
-        Err(Self::bad_type(Unsupported::Unit))
+        Ok(())
     }
 
     fn serialize_unit_struct(self, _: &'static str) -> Result<Self::Ok, Self::Error> {