diff --git a/src/cthulhu/acss.py b/src/cthulhu/acss.py
index 1fb62b3..f70ec16 100644
--- a/src/cthulhu/acss.py
+++ b/src/cthulhu/acss.py
@@ -88,12 +88,19 @@ class ACSS(dict):
     def __eq__(self, other):
         if not isinstance(other, ACSS):
             return False
-        if self.get(ACSS.FAMILY) != other.get(ACSS.FAMILY):
-            return False
-        if self.get(ACSS.RATE) != other.get(ACSS.RATE):
-            return False
-        if self.get(ACSS.AVERAGE_PITCH) != other.get(ACSS.AVERAGE_PITCH):
-            return False
+        compareKeys = (
+            ACSS.FAMILY,
+            ACSS.RATE,
+            ACSS.AVERAGE_PITCH,
+            ACSS.GAIN,
+            ACSS.PITCH_RANGE,
+            ACSS.STRESS,
+            ACSS.RICHNESS,
+            ACSS.PUNCTUATIONS,
+        )
+        for key in compareKeys:
+            if self.get(key) != other.get(key):
+                return False
         return True
 
     def __setitem__ (self, key, value):
diff --git a/src/cthulhu/settings_manager.py b/src/cthulhu/settings_manager.py
index eefb2d5..7c368ab 100644
--- a/src/cthulhu/settings_manager.py
+++ b/src/cthulhu/settings_manager.py
@@ -32,6 +32,7 @@ __date__      = "$Date$"
 __copyright__ = "Copyright (c) 2010 Consorcio Fernando de los Rios."
 __license__   = "LGPL"
 
+import copy
 import importlib
 import os
 from gi.repository import Gio, GLib
@@ -232,6 +233,10 @@ class SettingsManager(object):
                     value = getattr(settings, key)
                 except Exception:
                     pass
+            try:
+                value = copy.deepcopy(value)
+            except Exception:
+                pass
             self.defaultGeneral[key] = value
 
     def _getCustomizedSettings(self):