diff --git a/include/pybind11/complex.h b/include/pybind11/complex.h
index 8f285d778f..a6ec11a462 100644
--- a/include/pybind11/complex.h
+++ b/include/pybind11/complex.h
@@ -86,9 +86,11 @@ class type_caster<std::complex<T>> {
         return PyComplex_FromDoubles((double) src.real(), (double) src.imag());
     }
 
+    // `complex` does not satisfy `typing.SupportsComplex` in typeshed for Python <= 3.10.
+    // Keep it explicit so generated stubs targeting those versions accept complex values.
     PYBIND11_TYPE_CASTER(
         std::complex<T>,
-        io_name("typing.SupportsComplex | typing.SupportsFloat | typing.SupportsIndex",
+        io_name("complex | typing.SupportsComplex | typing.SupportsFloat | typing.SupportsIndex",
                 "complex"));
 };
 PYBIND11_NAMESPACE_END(detail)
diff --git a/tests/test_builtin_casters.py b/tests/test_builtin_casters.py
index b232c087e0..ee7333918c 100644
--- a/tests/test_builtin_casters.py
+++ b/tests/test_builtin_casters.py
@@ -565,7 +565,7 @@ def cant_convert(v):
 
     assert (
         doc(convert)
-        == "complex_convert(arg0: typing.SupportsComplex | typing.SupportsFloat | typing.SupportsIndex) -> complex"
+        == "complex_convert(arg0: complex | typing.SupportsComplex | typing.SupportsFloat | typing.SupportsIndex) -> complex"
     )
     assert doc(noconvert) == "complex_noconvert(arg0: complex) -> complex"