diff --git a/src/replication.c b/src/replication.c
index 67091dd0..7a0a99c6 100644
--- a/src/replication.c
+++ b/src/replication.c
@@ -758,7 +758,7 @@ void replconfCommand(client *c) {
             /* REPLCONF GETACK is used in order to request an ACK ASAP
              * to the slave. */
             if (server.masterhost && server.master) replicationSendAck();
-            /* Note: this command does not reply anything! */
+            return;
         } else {
             addReplyErrorFormat(c,"Unrecognized REPLCONF option: %s",
                 (char*)c->argv[j]->ptr);