diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index 616c8362ee1..7461f60fa32 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -2704,6 +2704,8 @@ socket_getaddrinfo(PyObject *self, PyObject *args)
 			goto err;
 		Py_XDECREF(single);
 	}
+	if (res0)
+		freeaddrinfo(res0);
 	return all;
  err:
 	Py_XDECREF(single);