diff --git a/committer/src/api.rs b/committer/src/api.rs
index ded12abb..20e3fc15 100644
--- a/committer/src/api.rs
+++ b/committer/src/api.rs
@@ -91,7 +91,7 @@ async fn metrics(registry: web::Data<Arc<Registry>>) -> impl Responder {
 }
 
 #[derive(Deserialize)]
-#[serde(rename_all = "lowercase", tag = "variant", content = "value")]
+#[serde(rename_all = "lowercase")]
 enum HeightVariant {
     Latest,
     Height(u32),