diff --git a/packages/core/api-public/src/runner_configs.rs b/packages/core/api-public/src/runner_configs.rs
index faec8740df..2175da8fb6 100644
--- a/packages/core/api-public/src/runner_configs.rs
+++ b/packages/core/api-public/src/runner_configs.rs
@@ -325,7 +325,6 @@ fn truncate_response_body(body: &str) -> String {
 }
 
 #[derive(Deserialize)]
-#[serde(deny_unknown_fields)]
 struct ServerlessMetadataPayload {
 	runtime: String,
 	version: String,