diff --git a/server/sse.go b/server/sse.go
index 6e6a13fe..5b36bfeb 100644
--- a/server/sse.go
+++ b/server/sse.go
@@ -143,7 +143,7 @@ func NewSSEServer(server *MCPServer, opts ...SSEOption) *SSEServer {
 	s := &SSEServer{
 		server:                       server,
 		sseEndpoint:                  "/sse",
-		messageEndpoint:              "/message",
+		messageEndpoint:              "/messages",
 		useFullURLForMessageEndpoint: true,
 	}