diff --git a/examples/protocols/websocket/CMakeLists.txt b/examples/protocols/websocket/CMakeLists.txt
index f77ad23e5..320a49d19 100644
--- a/examples/protocols/websocket/CMakeLists.txt
+++ b/examples/protocols/websocket/CMakeLists.txt
@@ -7,4 +7,4 @@ cmake_minimum_required(VERSION 3.5)
 set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/common_components/protocol_examples_common)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
-project(websocket-example)
+project(websocket_example)
diff --git a/examples/protocols/websocket/Makefile b/examples/protocols/websocket/Makefile
index 063a0a099..9c0adb31c 100644
--- a/examples/protocols/websocket/Makefile
+++ b/examples/protocols/websocket/Makefile
@@ -2,7 +2,7 @@
 # This is a project Makefile. It is assumed the directory this Makefile resides in is a
 # project subdirectory.
 #
-PROJECT_NAME := websocket-example
+PROJECT_NAME := websocket_example
 
 EXTRA_COMPONENT_DIRS = $(IDF_PATH)/examples/common_components/protocol_examples_common
 
diff --git a/examples/protocols/websocket/example_test.py b/examples/protocols/websocket/example_test.py
index 0955e7be9..2c99f384b 100644
--- a/examples/protocols/websocket/example_test.py
+++ b/examples/protocols/websocket/example_test.py
@@ -107,7 +107,7 @@ def test_examples_protocol_websocket(env, extra_data):
     """
     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')
+    binary_file = os.path.join(dut1.app.binary_path, 'websocket_example.bin')
     bin_size = os.path.getsize(binary_file)
     ttfw_idf.log_performance('websocket_bin_size', '{}KB'.format(bin_size // 1024))