diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index fcdbf8a..d3e5c75 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -455,18 +455,14 @@
 #include <sys/poll.h>
 #endif
 
-#ifdef Py_SOCKET_FD_CAN_BE_GE_FD_SETSIZE
-/* Platform can select file descriptors beyond FD_SETSIZE */
-#define IS_SELECTABLE(s) 1
-#elif defined(HAVE_POLL)
+#ifdef HAVE_POLL
 /* Instead of select(), we'll use poll() since poll() works on any fd. */
 #define IS_SELECTABLE(s) 1
 /* Can we call select() with this socket without a buffer overrun? */
 #else
-/* POSIX says selecting file descriptors beyond FD_SETSIZE
-   has undefined behaviour.  If there's no timeout left, we don't have to
-   call select, so it's a safe, little white lie. */
-#define IS_SELECTABLE(s) ((s)->sock_fd < FD_SETSIZE || s->sock_timeout <= 0.0)
+/* If there's no timeout left, we don't have to call select, so it's a safe,
+ * little white lie. */
+#define IS_SELECTABLE(s) (_PyIsSelectable_fd((s)->sock_fd) || (s)->sock_timeout <= 0.0)
 #endif
 
 static PyObject*