diff --git a/addon/globalPlugins/columnsReview/actions.py b/addon/globalPlugins/columnsReview/actions.py
index 9c367fb..28525b4 100644
--- a/addon/globalPlugins/columnsReview/actions.py
+++ b/addon/globalPlugins/columnsReview/actions.py
@@ -1,3 +1,4 @@
+# -*- coding: UTF-8 -*-
 # Defines actions for the columns Review add-on
 
 import addonHandler
diff --git a/addon/globalPlugins/columnsReview/commonFunc.py b/addon/globalPlugins/columnsReview/commonFunc.py
index 704ad72..2ca8a2d 100644
--- a/addon/globalPlugins/columnsReview/commonFunc.py
+++ b/addon/globalPlugins/columnsReview/commonFunc.py
@@ -1,3 +1,4 @@
+# -*- coding: UTF-8 -*-
 # Utility functions for the Columns Review add-on
 
 from .compat import CTWRAPPER
diff --git a/addon/globalPlugins/columnsReview/compat.py b/addon/globalPlugins/columnsReview/compat.py
index ce14d1e..fdaabba 100644
--- a/addon/globalPlugins/columnsReview/compat.py
+++ b/addon/globalPlugins/columnsReview/compat.py
@@ -1,4 +1,5 @@
-"""Provides various stuff used to preserve compatibility with older releases of NVDA."""
+# -*- coding: UTF-8 -*-
+# Provides various stuff used to preserve compatibility with older releases of NVDA.
 
 import controlTypes
 
diff --git a/addon/globalPlugins/columnsReview/configManager.py b/addon/globalPlugins/columnsReview/configManager.py
index d2812e8..443b92e 100644
--- a/addon/globalPlugins/columnsReview/configManager.py
+++ b/addon/globalPlugins/columnsReview/configManager.py
@@ -1,3 +1,4 @@
+# -*- coding: UTF-8 -*-
 import config
 try:
 	from configobj.validate import is_boolean
diff --git a/addon/globalPlugins/columnsReview/configSpec.py b/addon/globalPlugins/columnsReview/configSpec.py
index bbb8a2f..d191d5e 100644
--- a/addon/globalPlugins/columnsReview/configSpec.py
+++ b/addon/globalPlugins/columnsReview/configSpec.py
@@ -1,3 +1,4 @@
+# -*- coding: UTF-8 -*-
 # Config specification for the Columns Review add-on
 
 try:
diff --git a/addon/globalPlugins/columnsReview/dialogs.py b/addon/globalPlugins/columnsReview/dialogs.py
index c9c2f85..8e064cd 100644
--- a/addon/globalPlugins/columnsReview/dialogs.py
+++ b/addon/globalPlugins/columnsReview/dialogs.py
@@ -1,3 +1,4 @@
+# -*- coding: UTF-8 -*-
 # GUI dialogs for the Columns Review add-on
 
 import wx
diff --git a/addon/globalPlugins/columnsReview/exceptions.py b/addon/globalPlugins/columnsReview/exceptions.py
index f7df5d2..5c59810 100644
--- a/addon/globalPlugins/columnsReview/exceptions.py
+++ b/addon/globalPlugins/columnsReview/exceptions.py
@@ -1,3 +1,4 @@
+# -*- coding: UTF-8 -*-
 # Custom exceptions for the Columns Review add-on
 
 
diff --git a/addon/globalPlugins/columnsReview/utils.py b/addon/globalPlugins/columnsReview/utils.py
index c1a5e76..0f5bef7 100644
--- a/addon/globalPlugins/columnsReview/utils.py
+++ b/addon/globalPlugins/columnsReview/utils.py
@@ -1,3 +1,4 @@
+# -*- coding: UTF-8 -*-
 # Utility classes for the Columns Review add-on