diff --git a/src/asio_web/sslwebsocketclient.cpp b/src/asio_web/sslwebsocketclient.cpp
index 0a56000..bc91799 100644
--- a/src/asio_web/sslwebsocketclient.cpp
+++ b/src/asio_web/sslwebsocketclient.cpp
@@ -519,7 +519,7 @@ again:
         payloadLength = __builtin_bswap16(*(const uint16_t *)(&*iter));
         std::advance(iter, sizeof(uint16_t));
 
-        ESP_LOGI(TAG, "16bit payloadLength: %u", payloadLength);
+        ESP_LOGI(TAG, "16bit payloadLength: %llu", payloadLength);
     }
     else if (hdr.payloadLength == 127)
     {
@@ -533,7 +533,7 @@ again:
         payloadLength = *(const uint64_t *)(&*iter);
         std::advance(iter, sizeof(uint64_t));
 
-        ESP_LOGI(TAG, "64bit payloadLength: %u", payloadLength);
+        ESP_LOGI(TAG, "64bit payloadLength: %llu", payloadLength);
     }
 
     if (hdr.mask)
diff --git a/src/asio_web/websocketclientconnection.cpp b/src/asio_web/websocketclientconnection.cpp
index cf8b32c..80f4cfc 100644
--- a/src/asio_web/websocketclientconnection.cpp
+++ b/src/asio_web/websocketclientconnection.cpp
@@ -124,7 +124,7 @@ again:
         payloadLength = *(const uint64_t *)(&*iter);
         std::advance(iter, sizeof(uint64_t));
 
-        ESP_LOGI(TAG, "64bit payloadLength: %u", payloadLength);
+        ESP_LOGI(TAG, "64bit payloadLength: %llu", payloadLength);
     }
 
     if (hdr.mask)
@@ -167,9 +167,9 @@ again:
         return;
     }
 
-    ESP_LOGI(TAG, "remaining: %zd %lu", std::distance(iter, std::end(m_parsingBuffer)), payloadLength);
+    ESP_LOGI(TAG, "remaining: %zd %llu", std::distance(iter, std::end(m_parsingBuffer)), payloadLength);
 
-    ESP_LOGI(TAG, "payload: %.*s", payloadLength, &*iter);
+    ESP_LOGI(TAG, "payload: %.*s", int(payloadLength), &*iter);
 
     std::advance(iter, payloadLength);
     m_parsingBuffer.erase(std::begin(m_parsingBuffer), iter);