diff --git a/Modules/selectmodule.c b/Modules/selectmodule.c
index daabf03..8e26050 100644
--- a/Modules/selectmodule.c
+++ b/Modules/selectmodule.c
@@ -346,10 +346,12 @@
 {
 	Py_ssize_t i, pos;
 	PyObject *key, *value;
+        struct pollfd *old_ufds = self->ufds;
 
 	self->ufd_len = PyDict_Size(self->dict);
-	PyMem_Resize(self->ufds, struct pollfd, self->ufd_len);
+	PyMem_RESIZE(self->ufds, struct pollfd, self->ufd_len);
 	if (self->ufds == NULL) {
+                self->ufds = old_ufds;
 		PyErr_NoMemory();
 		return 0;
 	}