diff --git a/config.py b/config.py
index e5498c5..e811ee8 100644
--- a/config.py
+++ b/config.py
@@ -372,10 +372,13 @@ class Config(object):
             self = self._cfgimpl_parent
         return self
 
-    def cfgimpl_previous_values(self, path):
+    def cfgimpl_previous_value(self, path):
         home, name = self._cfgimpl_get_home_by_path(path)
         return home._cfgimpl_previous_values[name]
-        
+    
+    def get_previous_value(self, name):
+        return home._cfgimpl_previous_values[name]
+             
     def add_warning(self, warning):
         self._cfgimpl_get_toplevel()._cfgimpl_warnings.append(warning)