diff --git a/ChangeLog b/ChangeLog
index ba6bfc9..065b37d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,6 @@
+Thu Jan 12 19:49:41 2017 +0200 Emmanuel Garette <egarette@cadoles.com>
+	* can mix inversed and non inversed requires
+
 Wed Jan 11 22:56:30 2017 +0200 Emmanuel Garette <egarette@cadoles.com>
 	* copy the context in carry_out_calculation
 
diff --git a/test/test_requires.py b/test/test_requires.py
index b428f28..2ea010c 100644
--- a/test/test_requires.py
+++ b/test/test_requires.py
@@ -595,8 +595,35 @@ def test_requires_requirement_append():
 
 def test_requires_different_inverse():
     a = BoolOption('activate_service', '', True)
-    a
-    raises(ValueError, "IPOption('ip_address_service', '', requires=[{'option': a, 'expected': True, 'action': 'disabled', 'inverse': True}, {'option': a, 'expected': True, 'action': 'disabled', 'inverse': False}])")
+    b = IPOption('ip_address_service', '', requires=[
+        {'option': a, 'expected': True, 'action': 'disabled', 'inverse': True},
+        {'option': a, 'expected': True, 'action': 'disabled', 'inverse': False}])
+    od = OptionDescription('service', '', [a, b])
+    c = Config(od)
+    c.read_write()
+    raises(PropertiesOptionError, 'c.ip_address_service')
+    c.activate_service = False
+    raises(PropertiesOptionError, 'c.ip_address_service')
+
+
+def test_requires_different_inverse_unicode():
+    a = BoolOption('activate_service', '', True)
+    d = StrOption('activate_other_service', '', 'val2')
+    b = IPOption('ip_address_service', '', requires=[
+        {'option': a, 'expected': True, 'action': 'disabled', 'inverse': True},
+        {'option': d, 'expected': 'val1', 'action': 'disabled', 'inverse': False}])
+    od = OptionDescription('service', '', [a, d, b])
+    c = Config(od)
+    c.read_write()
+    assert c.ip_address_service == None
+    c.activate_service = False
+    raises(PropertiesOptionError, 'c.ip_address_service')
+    c.activate_service = True
+    assert c.ip_address_service == None
+    c.activate_other_service = 'val1'
+    raises(PropertiesOptionError, 'c.ip_address_service')
+    c.activate_service = False
+    raises(PropertiesOptionError, 'c.ip_address_service')
 
 
 def test_requires_recursive_path():
diff --git a/tiramisu/option/baseoption.py b/tiramisu/option/baseoption.py
index d45f6a4..14d2668 100644
--- a/tiramisu/option/baseoption.py
+++ b/tiramisu/option/baseoption.py
@@ -27,7 +27,7 @@ from ..i18n import _
 from ..setting import log, undefined, debug
 from ..autolib import carry_out_calculation
 from ..error import (ConfigError, ValueWarning, PropertiesOptionError,
-    display_list)
+                     display_list)
 from ..storage import get_storages_option
 from . import MasterSlaves
 
@@ -885,7 +885,7 @@ def validate_requires_arg(multi, requires, name):
                      the description of the requires dictionary
     """
     ret_requires = {}
-    config_action = {}
+    config_action = set()
 
     # start parsing all requires given by user (has dict)
     # transforme it to a tuple
@@ -938,32 +938,29 @@ def validate_requires_arg(multi, requires, name):
         if expected is not None:
             err = option._validate(expected)
             if err:
-                raise ValueError(_('malformed requirements second argument '
+                raise ValueError(_('malformed requirements expected value '
                                    'must be valid for option {0}'
                                    ': {1}').format(name, err))
-        if action in config_action:
-            if inverse != config_action[action]:  # pragma: optional cover
-                raise ValueError(_("inconsistency in action types"
-                                   " for option: {0}"
-                                   " action: {1}").format(name, action))
-        else:
-            config_action[action] = inverse
+        config_action.add(action)
         if action not in ret_requires:
             ret_requires[action] = {}
         if option not in ret_requires[action]:
-            ret_requires[action][option] = (option, [expected], action,
-                                            inverse, transitive, same_action)
+            ret_requires[action][option] = {}
+        if inverse not in ret_requires[action][option]:
+            ret_requires[action][option][inverse] = (option, [expected], action,
+                                                     inverse, transitive, same_action)
         else:
-            ret_requires[action][option][1].append(expected)
+            ret_requires[action][option][inverse][1].append(expected)
     # transform dict to tuple
     ret = []
     for opt_requires in ret_requires.values():
         ret_action = []
-        for require in opt_requires.values():
-            ret_action.append((require[0], tuple(require[1]), require[2],
-                               require[3], require[4], require[5]))
+        for requires in opt_requires.values():
+            for require in requires.values():
+                ret_action.append((require[0], tuple(require[1]), require[2],
+                                   require[3], require[4], require[5]))
         ret.append(tuple(ret_action))
-    return frozenset(config_action.keys()), tuple(ret)
+    return frozenset(config_action), tuple(ret)
 
 
 class SymLinkOption(OnlyOption):