diff --git a/test/test_option_setting.py b/test/test_option_setting.py
index 299b6b8..9034d4e 100644
--- a/test/test_option_setting.py
+++ b/test/test_option_setting.py
@@ -176,6 +176,22 @@ def test_multi_with_requires_in_another_group():
     assert 'hidden' in setting[stroption]
 
 
+def test_multi_with_requires_in_another_group_inverse():
+    s = StrOption("string", "", default=["string"], multi=True)
+    intoption = IntOption('int', 'Test int option', default=0)
+    stroption = StrOption('str', 'Test string option', default=["abc"],
+            requires=[{'option': intoption, 'expected': 0, 'action': 'hidden', 'inverse': True}], multi=True)
+    descr = OptionDescription("opt", "", [stroption])
+    descr2 = OptionDescription("opt2", "", [intoption, s, descr])
+    config = Config(descr2)
+    setting = config.cfgimpl_get_settings()
+    config.read_write()
+    assert not 'hidden' in setting[stroption]
+    config.int = 1
+    raises(PropertiesOptionError,  "config.opt.str = ['a', 'b']")
+    assert 'hidden' in setting[stroption]
+
+
 def test_apply_requires_from_config():
     s = StrOption("string", "", default=["string"], multi=True)
     intoption = IntOption('int', 'Test int option', default=0)
@@ -232,6 +248,14 @@ def test_multi_with_requires_that_is_multi():
     raises(ValueError, "Config(descr)")
 
 
+def test_multi_with_requires_that_is_multi_inverse():
+    b = IntOption('int', 'Test int option', default=[0], multi=True)
+    c = StrOption('str', 'Test string option', default=['abc'], requires=[{'option': b, 'expected': 0, 'action': 'hidden', 'inverse': True}], multi=True)
+    descr = OptionDescription("opt", "", [b, c])
+    descr
+    raises(ValueError, "Config(descr)")
+
+
 def test_multi_with_requires_that_is_masterslave():
     b = IntOption('int', 'Test int option', default=[0], multi=True)
     c = StrOption('str', 'Test string option', requires=[{'option': b, 'expected': 1, 'action': 'hidden'}], multi=True)
@@ -270,6 +294,30 @@ def test_multi_with_requires_that_is_masterslave_slave():
     assert config.str1[0] is None
     raises(PropertiesOptionError, 'config.str1[1]')
 
+
+def test_multi_with_requires_that_is_masterslave_slave_inverse():
+    b = IntOption('int', 'Test int option', default=[0], multi=True)
+    c = StrOption('str', 'Test string option', multi=True)
+    d = StrOption('str1', 'Test string option', requires=[{'option': c, 'expected': None, 'action': 'hidden', 'inverse': True}], multi=True)
+    descr = OptionDescription("int", "", [b, c, d])
+    descr.impl_set_group_type(groups.master)
+    config = Config(descr)
+    config.read_write()
+    assert config.int == [0]
+    assert config.str == [None]
+    assert config.str1 == [None]
+    config.int = [0, 1]
+    assert config.int == [0, 1]
+    assert config.str == [None, None]
+    assert config.str1 == [None, None]
+    config.str = [None, '1']
+    config.read_only()
+    assert config.str1 == [None, None]
+    config.read_write()
+    assert config.str1[0] is None
+    raises(PropertiesOptionError, 'config.str1[1]')
+
+
 def test_multi_with_requires_that_is_not_same_masterslave():
     b = IntOption('int', 'Test int option', default=[0], multi=True)
     c = StrOption('str', 'Test string option', requires=[{'option': b, 'expected': 1, 'action': 'hidden'}], multi=True)
diff --git a/tiramisu/setting.py b/tiramisu/setting.py
index b1ca092..ab6bede 100644
--- a/tiramisu/setting.py
+++ b/tiramisu/setting.py
@@ -651,6 +651,8 @@ class Settings(object):
                                              " '{0}' with requirement on: "
                                              "'{1}'").format(path, reqpath))
                 if option.impl_is_multi():
+                    if index is None:
+                        continue
                     idx = index
                 else:
                     idx = None
@@ -683,8 +685,7 @@ class Settings(object):
                         raise value
                 else:
                     orig_value = value
-                if (not inverse and
-                        value in expected or
+                if (not inverse and value in expected or
                         inverse and value not in expected):
                     if debug:
                         if isinstance(orig_value, PropertiesOptionError):