diff --git a/src/object/function.cpp b/src/object/function.cpp
index 7b6ab9f08..fec56768d 100644
--- a/src/object/function.cpp
+++ b/src/object/function.cpp
@@ -161,7 +161,6 @@ PyObject* function::call(PyObject* args, PyObject* keywords) const
                     else
                     {
                         // build a new arg tuple, will adjust its size later
-                        assert(max_arity <= static_cast<std::size_t>(ssize_t_max));
                         inner_args = handle<>(
                             PyTuple_New(static_cast<ssize_t>(max_arity)));