diff --git a/src/sentinel.c b/src/sentinel.c
index e8d21ae9..d6192005 100644
--- a/src/sentinel.c
+++ b/src/sentinel.c
@@ -2078,12 +2078,12 @@ int sentinelSendHello(sentinelRedisInstance *ri) {
     /* Format and send the Hello message. */
     snprintf(payload,sizeof(payload),
         "%s,%d,%s,%llu," /* Info about this sentinel. */
-        "%s,%s,%d,%lld", /* Info about current master. */
+        "%s,%s,%d,%llu", /* Info about current master. */
         ip, server.port, server.runid,
         (unsigned long long) sentinel.current_epoch,
         /* --- */
         master->name,master_addr->ip,master_addr->port,
-        master->config_epoch);
+        (unsigned long long) master->config_epoch);
     retval = redisAsyncCommand(ri->cc,
         sentinelPublishReplyCallback, NULL, "PUBLISH %s %s",
             SENTINEL_HELLO_CHANNEL,payload);