diff --git a/parso/python/errors.py b/parso/python/errors.py
index 6fb7f67..db3a30f 100644
--- a/parso/python/errors.py
+++ b/parso/python/errors.py
@@ -742,6 +742,9 @@ class _AnnotatorRule(SyntaxRule):
 class _ArgumentRule(SyntaxRule):
     def is_issue(self, node):
         first = node.children[0]
+        if self._normalizer.version < (3, 8):
+            # a((b)=c) is valid in <3.8
+            first = _remove_parens(first)
         if node.children[1] == '=' and first.type != 'name':
             if first.type == 'lambdef':
                 # f(lambda: 1=1)
diff --git a/test/test_python_errors.py b/test/test_python_errors.py
index 26d9e6e..75ebb88 100644
--- a/test/test_python_errors.py
+++ b/test/test_python_errors.py
@@ -273,6 +273,9 @@ def test_too_many_levels_of_indentation():
     assert not _get_error_list(build_nested('pass', 49, base=base))
     assert _get_error_list(build_nested('pass', 50, base=base))
 
+def test_paren_kwarg():
+    assert _get_error_list("print((sep)=seperator)", version="3.8")
+    assert not _get_error_list("print((sep)=seperator)", version="3.7")
 
 @pytest.mark.parametrize(
     'code', [