diff --git a/examples/protocols/websocket/example_test.py b/examples/protocols/websocket/example_test.py
index 4ca10b204..8c21c6c03 100644
--- a/examples/protocols/websocket/example_test.py
+++ b/examples/protocols/websocket/example_test.py
@@ -1,19 +1,10 @@
 import re
 import os
-import sys
-import IDF
-from IDF.IDFDUT import ESP32DUT
 
-# this is a test case write with tiny-test-fw.
-# to run test cases outside tiny-test-fw,
-# we need to set environment variable `TEST_FW_PATH`,
-# then get and insert `TEST_FW_PATH` to sys path before import FW module
-test_fw_path = os.getenv("TEST_FW_PATH")
-if test_fw_path and test_fw_path not in sys.path:
-    sys.path.insert(0, test_fw_path)
+import ttfw_idf
 
 
-@IDF.idf_example_test(env_tag="Example_WIFI", ignore=True)
+@ttfw_idf.idf_example_test(env_tag="Example_WIFI", ignore=True)
 def test_examples_protocol_websocket(env, extra_data):
     """
     steps: |
@@ -21,12 +12,12 @@ def test_examples_protocol_websocket(env, extra_data):
       2. connect to ws://echo.websocket.org
       3. send and receive data
     """
-    dut1 = env.get_dut("websocket", "examples/protocols/websocket", dut_class=ESP32DUT)
+    dut1 = env.get_dut("websocket", "examples/protocols/websocket", dut_class=ttfw_idf.ESP32DUT)
     # check and log bin size
     binary_file = os.path.join(dut1.app.binary_path, "websocket-example.bin")
     bin_size = os.path.getsize(binary_file)
-    IDF.log_performance("websocket_bin_size", "{}KB".format(bin_size // 1024))
-    IDF.check_performance("websocket_bin_size", bin_size // 1024)
+    ttfw_idf.log_performance("websocket_bin_size", "{}KB".format(bin_size // 1024))
+    ttfw_idf.check_performance("websocket_bin_size", bin_size // 1024)
     # start test
     dut1.start_app()
     dut1.expect("Waiting for wifi ...")