diff --git a/py_rql/grammar.py b/py_rql/grammar.py
index a7757dc..9de5099 100644
--- a/py_rql/grammar.py
+++ b/py_rql/grammar.py
@@ -20,8 +20,7 @@
 term: expr_term
     | logical
     | tuple
-    | _L_BRACE logical _R_BRACE
-    | _L_BRACE tuple _R_BRACE
+    | _L_BRACE term _R_BRACE
 
 expr_term: comp
     | listing
diff --git a/tests/test_parser/test_logical.py b/tests/test_parser/test_logical.py
index 950f62d..f9f87ec 100644
--- a/tests/test_parser/test_logical.py
+++ b/tests/test_parser/test_logical.py
@@ -201,8 +201,11 @@ def test_or_chain(query):
     }
 
 
-def test_logical_tuple_and_not():
-    result = logical_transform('(not(id=fg))')
+@pytest.mark.parametrize(
+    'query', ('((not(id=fg)))', 'not(eq(id,fg))', '((((not(id=fg)))))', 'not((eq(id,fg)))'),
+)
+def test_logical_tuple_and_not(query):
+    result = logical_transform(query)
 
     not_grammar_key = LogicalOperators.get_grammar_key(LogicalOperators.NOT)
 
@@ -244,3 +247,12 @@ def test_logical_tuple_nesting_ands_and_ors():
             (ComparisonOperators.EQ, 'id', '*dziad*'),
         ],
     }
+
+
+@pytest.mark.parametrize('query', ('((not(ilike(id,*8684*))))', ))
+def test_logical_tuple_not_and_ilike(query):
+    result = logical_transform(query)
+
+    not_grammar_key = LogicalOperators.get_grammar_key(LogicalOperators.NOT)
+
+    assert not_grammar_key in result