diff --git a/lib/bedrock.js b/lib/bedrock.js
index 212b199..97cffea 100644
--- a/lib/bedrock.js
+++ b/lib/bedrock.js
@@ -16,12 +16,12 @@ const START_TIME = new Date().getTime();
  * @returns {Buffer}
  * @see {@link https://wiki.vg/Raknet_Protocol#Unconnected_Ping}
  */
-const createUnconnectedPingFrame = (pingId) => {
+const createUnconnectedPingFrame = (timestamp) => {
     const buffer = Buffer.alloc(33);
-    buffer.writeUInt8(0x01, 0);
-    buffer.writeBigInt64LE(BigInt(pingId), 1);
-    Buffer.from(MAGIC, "hex").copy(buffer, 9);
-    buffer.writeBigInt64LE(BigInt(0), 25);
+    buffer.writeUInt8(0x01, 0); // Packet ID
+    buffer.writeBigInt64LE(BigInt(timestamp), 1); // Timestamp
+    Buffer.from(MAGIC, "hex").copy(buffer, 9); // OFFLINE_MESSAGE_DATA_ID (Magic)
+    buffer.writeBigInt64LE(BigInt(0), 25); // Client GUID
     return buffer;
 };