diff --git a/test/test_permissive.py b/test/test_permissive.py
index f4de786..f52ed6e 100644
--- a/test/test_permissive.py
+++ b/test/test_permissive.py
@@ -27,6 +27,7 @@ def test_permissive():
         props = err.proptype
     assert set(props) == {'disabled'}
     api.unrestraint.permissive.set(frozenset(['disabled']))
+    assert api.unrestraint.permissive.get() == frozenset(['disabled'])
     props = frozenset()
     try:
         api.option('u1').value.get()
@@ -58,6 +59,7 @@ def test_permissive_mandatory():
     else:
         assert frozenset(props) == frozenset(['disabled'])
     api.unrestraint.permissive.set(frozenset(['mandatory', 'disabled']))
+    assert api.unrestraint.permissive.get() == frozenset(['mandatory', 'disabled'])
     api.property.add('permissive')
     api.option('u1').value.get()
     api.property.pop('permissive')
@@ -76,6 +78,7 @@ def test_permissive_frozen():
     api = Config(descr)
     api.property.read_write()
     api.unrestraint.permissive.set(frozenset(['frozen', 'disabled']))
+    assert api.unrestraint.permissive.get() == frozenset(['frozen', 'disabled'])
     try:
         api.option('u1').value.set(1)
     except PropertiesOptionError as err:
@@ -232,6 +235,7 @@ def test_permissive_option_mandatory():
     else:
         assert frozenset(props) == frozenset(['disabled'])
     api.unrestraint.option('u1').permissive.set(frozenset(['mandatory', 'disabled']))
+    assert api.unrestraint.option('u1').permissive.get() == frozenset(['mandatory', 'disabled'])
     api.property.add('permissive')
     api.option('u1').value.get()
     api.property.pop('permissive')
@@ -274,6 +278,8 @@ def test_remove_option_permissive():
     api.property.read_write()
     raises(PropertiesOptionError, "api.option('od1.var1').value.get()")
     api.forcepermissive.option('od1.var1').permissive.set(frozenset(['hidden']))
+    assert api.forcepermissive.option('od1.var1').permissive.get() == frozenset(['hidden'])
     assert api.option('od1.var1').value.get() == 'value'
     api.forcepermissive.option('od1.var1').permissive.set(frozenset())
+    assert api.forcepermissive.option('od1.var1').permissive.get() == frozenset()
     raises(PropertiesOptionError, "api.option('od1.var1').value.get()")
diff --git a/tiramisu/api.py b/tiramisu/api.py
index 4baff11..40f5a3b 100644
--- a/tiramisu/api.py
+++ b/tiramisu/api.py
@@ -368,8 +368,8 @@ class TiramisuOptionPermissive(CommonTiramisuOption):
     def set(self, permissives):
         """set permissives value"""
         option = self.option_bag.option
-        self.settings.setpermissive(self.option_bag,
-                                    permissives=permissives)
+        self.settings.setpermissives(self.option_bag,
+                                     permissives=permissives)
 
     def reset(self):
         """reset all personalised permissive"""
@@ -739,7 +739,7 @@ class TiramisuContextProperty(TiramisuContext):
         settings = self.config_bag.context.cfgimpl_get_settings()
         settings.read_write()
 #        #FIXME ?
-        settings.set_context_permissive(frozenset(['hidden']))
+        settings.set_context_permissives(frozenset(['hidden']))
         try:
             del self.config_bag.properties
         except AttributeError:
@@ -787,11 +787,11 @@ class TiramisuContextPermissive(TiramisuContext):
 
     def get(self):
         """get configuration permissives"""
-        return self.config_bag.context.cfgimpl_get_settings().get_context_permissive()
+        return self.config_bag.context.cfgimpl_get_settings().get_context_permissives()
 
     def set(self, permissives):
         """set configuration permissives"""
-        self.config_bag.context.cfgimpl_get_settings().set_context_permissive(permissives)
+        self.config_bag.context.cfgimpl_get_settings().set_context_permissives(permissives)
 
     def exportation(self):
         """export configuration permissives"""
diff --git a/tiramisu/setting.py b/tiramisu/setting.py
index ee2346b..093c329 100644
--- a/tiramisu/setting.py
+++ b/tiramisu/setting.py
@@ -625,14 +625,14 @@ class Settings(object):
             except AttributeError:
                 pass
 
-    def set_context_permissive(self,
-                               permissive):
-        self.setpermissive(None,
-                           permissive)
+    def set_context_permissives(self,
+                                permissives):
+        self.setpermissives(None,
+                            permissives)
 
-    def setpermissive(self,
-                      option_bag,
-                      permissives):
+    def setpermissives(self,
+                       option_bag,
+                       permissives):
         """
         enables us to put the permissives in the storage
 
@@ -658,7 +658,7 @@ class Settings(object):
         if forbidden_permissives:
             raise ConfigError(_('cannot add those permissives: {0}').format(
                 ' '.join(forbidden_permissives)))
-        self._pp_.setpermissive(path, permissives)
+        self._pp_.setpermissives(path, permissives)
         if option_bag is not None:
             self._getcontext().cfgimpl_reset_cache(option_bag)
 
diff --git a/tiramisu/storage/dictionary/setting.py b/tiramisu/storage/dictionary/setting.py
index c28ba33..4546187 100644
--- a/tiramisu/storage/dictionary/setting.py
+++ b/tiramisu/storage/dictionary/setting.py
@@ -73,14 +73,14 @@ class Permissives(Cache):
         self._permissives = {}
         super(Permissives, self).__init__(storage)
 
-    def setpermissive(self, path, permissive):
+    def setpermissives(self, path, permissives):
         if DEBUG:  # pragma: no cover 
-            print('setpermissive', path, permissive)
-        if not permissive:
+            print('setpermissives', path, permissives)
+        if not permissives:
             if path in self._permissives:
                 del self._permissives[path]
         else:
-            self._permissives[path] = permissive
+            self._permissives[path] = permissives
 
     def getpermissives(self, path=None):
         ret = self._permissives.get(path, frozenset())