diff --git a/src/WebSocketsClient.cpp b/src/WebSocketsClient.cpp
index 0cb1f38..fbcb3a1 100644
--- a/src/WebSocketsClient.cpp
+++ b/src/WebSocketsClient.cpp
@@ -215,7 +215,7 @@ bool WebSocketsClient::sendBIN(const uint8_t * payload, size_t length) {
  */
 bool WebSocketsClient::sendPing(uint8_t * payload, size_t length) {
     if(clientIsConnected(&_client)) {
-        return sendFrame(&_client, WSop_ping, payload, length);
+        return sendFrame(&_client, WSop_ping, payload, length, true);
     }
     return false;
 }