diff --git a/cfg_checker/common/config_file.py b/cfg_checker/common/config_file.py
index c70e5a6..513e0ec 100644
--- a/cfg_checker/common/config_file.py
+++ b/cfg_checker/common/config_file.py
@@ -2,11 +2,10 @@
 import os
 
 from . import logger_cli
+from .const import truth
 
 
 class ConfigFile(object):
-    _truth = ['true', '1', 't', 'y', 'yes', 'yeah', 'yup',
-              'certainly', 'uh-huh']
     _config = None
     _section_name = None
     _config_filepath = None
@@ -45,7 +44,7 @@
             return path
 
     def _ensure_boolean(self, _value):
-        if _value.lower() in self._truth:
+        if _value.lower() in truth:
             return True
         else:
             return False