diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index 60219593be61e2..c11fb4400eab2f 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -6883,8 +6883,10 @@ socket_getnameinfo(PyObject *self, PyObject *args)
         }
 #endif
     }
+    Py_BEGIN_ALLOW_THREADS
     error = getnameinfo(res->ai_addr, (socklen_t) res->ai_addrlen,
                     hbuf, sizeof(hbuf), pbuf, sizeof(pbuf), flags);
+    Py_END_ALLOW_THREADS
     if (error) {
         socket_state *state = get_module_state(self);
         set_gaierror(state, error);