diff --git a/serde/src/private/ser.rs b/serde/src/private/ser.rs
index eb8cfc98..1ac9363f 100644
--- a/serde/src/private/ser.rs
+++ b/serde/src/private/ser.rs
@@ -452,7 +452,6 @@ mod content {
         }
     }
 
-    #[derive(Debug)]
     pub enum Content {
         Bool(bool),