diff --git a/src/infi/clickhouse_orm/funcs.py b/src/infi/clickhouse_orm/funcs.py
index b5c9bbe..f137a45 100644
--- a/src/infi/clickhouse_orm/funcs.py
+++ b/src/infi/clickhouse_orm/funcs.py
@@ -294,6 +294,8 @@ class F(Cond, FunctionOperatorsMixin, metaclass=FMeta):
             return 'NULL'
         if isinstance(arg, QuerySet):
             return "(%s)" % arg
+        if isinstance(arg, tuple):
+            return '(' + comma_join(F._arg_to_sql(x) for x in arg) + ')'
         if is_iterable(arg):
             return '[' + comma_join(F._arg_to_sql(x) for x in arg) + ']'
         return str(arg)
@@ -406,11 +408,15 @@ class F(Cond, FunctionOperatorsMixin, metaclass=FMeta):
     @staticmethod
     @binary_operator
     def _in(a, b):
+        if is_iterable(b) and not isinstance(b, (tuple, QuerySet)):
+            b = tuple(b)
         return F('IN', a, b)
 
     @staticmethod
     @binary_operator
     def _notIn(a, b):
+        if is_iterable(b) and not isinstance(b, (tuple, QuerySet)):
+            b = tuple(b)
         return F('NOT IN', a, b)
 
     # Functions for working with dates and times
diff --git a/tests/test_database.py b/tests/test_database.py
index 78c3fdb..2fd9864 100644
--- a/tests/test_database.py
+++ b/tests/test_database.py
@@ -33,6 +33,8 @@ class DatabaseTestCase(TestCaseWithData):
         self._insert_and_check(self._sample_data(), len(data), batch_size=100)
 
     def test_insert__funcs_as_default_values(self):
+        if self.database.server_version < (20, 1, 2, 4):
+            raise unittest.SkipTest('Buggy in server versions before 20.1.2.4')
         class TestModel(Model):
             a = DateTimeField(default=datetime.datetime(2020, 1, 1))
             b = DateField(default=F.toDate(a))
diff --git a/tests/test_funcs.py b/tests/test_funcs.py
index a2db093..06157d4 100644
--- a/tests/test_funcs.py
+++ b/tests/test_funcs.py
@@ -75,9 +75,11 @@ class FuncsTestCase(TestCaseWithData):
         self.assertEqual(F('func', F('sqrt', 25)).to_sql(), 'func(sqrt(25))')
         # Iterables as args
         x = [1, 'z', F('foo', 17)]
-        for y in [x, tuple(x), iter(x)]:
+        for y in [x, iter(x)]:
             self.assertEqual(F('func', y, 5).to_sql(), "func([1, 'z', foo(17)], 5)")
-        self.assertEqual(F('func', [(1, 2), (3, 4)]).to_sql(), "func([[1, 2], [3, 4]])")
+        # Tuples as args
+        self.assertEqual(F('func', [(1, 2), (3, 4)]).to_sql(), "func([(1, 2), (3, 4)])")
+        self.assertEqual(F('func', tuple(x), 5).to_sql(), "func((1, 'z', foo(17)), 5)")
         # Binary operator functions
         self.assertEqual(F.plus(1, 2).to_sql(), "(1 + 2)")
         self.assertEqual(F.lessOrEquals(1, 2).to_sql(), "(1 <= 2)")
@@ -187,9 +189,9 @@ class FuncsTestCase(TestCaseWithData):
         self._test_func(one | 0, 1)
         self._test_func(0 | one, 1)
         # ^
-        self._test_func(one ^ one, 0)
-        self._test_func(one ^ 0, 1)
-        self._test_func(0 ^ one, 1)
+        self._test_func(one ^ one)
+        self._test_func(one ^ 0)
+        self._test_func(0 ^ one)
         # ~
         self._test_func(~one, 0)
         self._test_func(~~one, 1)