diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -3969,6 +3969,7 @@ socket_getnameinfo(PyObject *self, PyObj
     memset(&hints, 0, sizeof(hints));
     hints.ai_family = AF_UNSPEC;
     hints.ai_socktype = SOCK_DGRAM;     /* make numeric port happy */
+    hints.ai_flags = AI_NUMERICHOST;    /* don't do any name resolution */
     Py_BEGIN_ALLOW_THREADS
     ACQUIRE_GETADDRINFO_LOCK
     error = getaddrinfo(hostp, pbuf, &hints, &res);