diff --git a/src/net.c b/src/net.c
index 8a59001..ff1f3c6 100644
--- a/src/net.c
+++ b/src/net.c
@@ -821,7 +821,7 @@ int hyper_setup_dns(struct hyper_pod *pod)
 		}
 
 		while (len < size) {
-			l = write(fd, buf, size);
+			l = write(fd, buf + len, size - len);
 			if (l < 0) {
 				perror("fail to write resolv.conf");
 				goto out;