diff --git a/include/pybind11/pybind11.h b/include/pybind11/pybind11.h
index a0e63958..c6237056 100644
--- a/include/pybind11/pybind11.h
+++ b/include/pybind11/pybind11.h
@@ -1566,7 +1566,7 @@ public:
         #if PY_MAJOR_VERSION < 3
             def("__long__", [](Type value) { return (Scalar) value; });
         #endif
-        #if PY_MAJOR_VERSION >= 3 && PY_MINOR_VERSION >= 8
+        #if PY_MAJOR_VERSION > 3 || (PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION >= 8)
             def("__index__", [](Type value) { return (Scalar) value; });
         #endif