diff --git a/components/esp_websocket_client/esp_websocket_client.c b/components/esp_websocket_client/esp_websocket_client.c
index b509463cf..08d2ba21f 100644
--- a/components/esp_websocket_client/esp_websocket_client.c
+++ b/components/esp_websocket_client/esp_websocket_client.c
@@ -606,14 +606,14 @@ static int esp_websocket_client_send_with_opcode(esp_websocket_client_handle_t c
         goto unlock_and_return;
     }
 
-
     while (widx < len) {
         if (need_write > client->buffer_size) {
             need_write = client->buffer_size;
         }
         memcpy(client->tx_buffer, data + widx, need_write);
         // send with ws specific way and specific opcode
-        wlen = esp_transport_ws_send_raw(client->transport, opcode, (char *)client->tx_buffer, need_write, timeout);
+        wlen = esp_transport_ws_send_raw(client->transport, opcode, (char *)client->tx_buffer, need_write,
+                                        (timeout==portMAX_DELAY)? -1 : timeout * portTICK_PERIOD_MS);
         if (wlen <= 0) {
             ret = wlen;
             ESP_LOGE(TAG, "Network error: esp_transport_write() returned %d, errno=%d", ret, errno);
diff --git a/components/esp_websocket_client/include/esp_websocket_client.h b/components/esp_websocket_client/include/esp_websocket_client.h
index 444343c82..3dbe1df9a 100644
--- a/components/esp_websocket_client/include/esp_websocket_client.h
+++ b/components/esp_websocket_client/include/esp_websocket_client.h
@@ -155,7 +155,7 @@ esp_err_t esp_websocket_client_destroy(esp_websocket_client_handle_t client);
  * @param[in]  client  The client
  * @param[in]  data    The data
  * @param[in]  len     The length
- * @param[in]  timeout Write data timeout
+ * @param[in]  timeout Write data timeout in RTOS ticks
  *
  * @return
  *     - Number of data was sent
@@ -169,7 +169,7 @@ int esp_websocket_client_send(esp_websocket_client_handle_t client, const char *
  * @param[in]  client  The client
  * @param[in]  data    The data
  * @param[in]  len     The length
- * @param[in]  timeout Write data timeout
+ * @param[in]  timeout Write data timeout in RTOS ticks
  *
  * @return
  *     - Number of data was sent
@@ -183,7 +183,7 @@ int esp_websocket_client_send_bin(esp_websocket_client_handle_t client, const ch
  * @param[in]  client  The client
  * @param[in]  data    The data
  * @param[in]  len     The length
- * @param[in]  timeout Write data timeout
+ * @param[in]  timeout Write data timeout in RTOS ticks
  *
  * @return
  *     - Number of data was sent