diff --git a/mypy/stubdoc.py b/mypy/stubdoc.py
index 928d024514f3..99d3d751b6b9 100644
--- a/mypy/stubdoc.py
+++ b/mypy/stubdoc.py
@@ -20,7 +20,7 @@
 Sig: _TypeAlias = Tuple[str, str]
 
 
-_TYPE_RE: Final = re.compile(r"^[a-zA-Z_][\w\[\], .\"\']*(\.[a-zA-Z_][\w\[\], ]*)*$")
+_TYPE_RE: Final = re.compile(r"^[a-zA-Z_][\w\[\], ().\"\']*(\.[a-zA-Z_][\w\[\], ]*)*$")
 _ARG_NAME_RE: Final = re.compile(r"\**[A-Za-z_][A-Za-z0-9_]*$")
 
 
diff --git a/mypy/test/teststubgen.py b/mypy/test/teststubgen.py
index e65a16c8f395..299d84edcb5e 100644
--- a/mypy/test/teststubgen.py
+++ b/mypy/test/teststubgen.py
@@ -1386,6 +1386,9 @@ def test_is_valid_type(self) -> None:
         assert is_valid_type("List[int]")
         assert is_valid_type("Dict[str, int]")
         assert is_valid_type("None")
+        assert is_valid_type("tuple[int]")
+        assert is_valid_type("tuple[()]")
+        assert is_valid_type("tuple[int, ...]")
         assert is_valid_type("Literal[26]")
         assert is_valid_type("Literal[0x1A]")
         assert is_valid_type('Literal["hello world"]')