diff --git a/ADC_function.py b/ADC_function.py
index 6360574..476560e 100644
--- a/ADC_function.py
+++ b/ADC_function.py
@@ -1,3 +1,5 @@
+# -*- coding: utf-8 -*-
+
 import requests
 from configparser import ConfigParser
 import os
diff --git a/AV_Data_Capture.py b/AV_Data_Capture.py
index d8a6e33..7d4da3c 100644
--- a/AV_Data_Capture.py
+++ b/AV_Data_Capture.py
@@ -1,3 +1,5 @@
+# -*- coding: utf-8 -*-
+
 import glob
 import os
 import time
diff --git a/core.py b/core.py
index b68692e..0120dda 100644
--- a/core.py
+++ b/core.py
@@ -1,3 +1,5 @@
+# -*- coding: utf-8 -*-
+
 import re
 import os
 import os.path