diff --git a/examples/WebSocket/WebSocket.ino b/examples/WebSocket/WebSocket.ino
index 43b2bb6c..170fe517 100644
--- a/examples/WebSocket/WebSocket.ino
+++ b/examples/WebSocket/WebSocket.ino
@@ -60,6 +60,7 @@ void setup() {
 
     } else if (type == WS_EVT_DATA) {
       AwsFrameInfo *info = (AwsFrameInfo *)arg;
+      Serial.printf("index: %" PRIu64 ", len: %" PRIu64 ", final: %" PRIu8 ", opcode: %" PRIu8 "\n", info->index, info->len, info->final, info->opcode);
       String msg = "";
       if (info->final && info->index == 0 && info->len == len) {
         if (info->opcode == WS_TEXT) {