diff --git a/src/networking.c b/src/networking.c
index 33531363f0ef5098bae315477c13ab5578fba964..dc599d4814e92e250390607e44b055bafb0ca987 100644
--- a/src/networking.c
+++ b/src/networking.c
@@ -149,7 +149,7 @@ int prepareClientToWrite(redisClient *c) {
     if (c->fd <= 0) return REDIS_ERR; /* Fake client */
     if (c->bufpos == 0 && listLength(c->reply) == 0 &&
         (c->replstate == REDIS_REPL_NONE ||
-         c->replstate == REDIS_REPL_ONLINE) &&
+         c->replstate == REDIS_REPL_ONLINE) && !c->repl_put_online_on_ack &&
         aeCreateFileEvent(server.el, c->fd, AE_WRITABLE,
         sendReplyToClient, c) == AE_ERR) return REDIS_ERR;
     return REDIS_OK;
diff --git a/src/replication.c b/src/replication.c
index e5a7c2614c1060703e8b1bde3546cbdff525954e..a277decee26ce64a5e610591442679ec21085487 100644
--- a/src/replication.c
+++ b/src/replication.c
@@ -773,6 +773,7 @@ void updateSlavesWaitingBgsave(int bgsaveerr, int type) {
                  * is technically online now. */
                 slave->replstate = REDIS_REPL_ONLINE;
                 slave->repl_put_online_on_ack = 1;
+                slave->repl_ack_time = server.unixtime;
             } else {
                 if (bgsaveerr != REDIS_OK) {
                     freeClient(slave);