diff --git a/packages/grpc-js/src/server-call.ts b/packages/grpc-js/src/server-call.ts
index f7f3f1ff..fc456fda 100644
--- a/packages/grpc-js/src/server-call.ts
+++ b/packages/grpc-js/src/server-call.ts
@@ -63,6 +63,7 @@ export type ServerErrorResponse = ServerStatusResponse & Error;
 
 export type ServerSurfaceCall = {
   cancelled: boolean;
+  readonly metadata: Metadata
   getPeer(): string;
   sendMetadata(responseMetadata: Metadata): void;
 } & EventEmitter;