diff --git a/src/sentinel.c b/src/sentinel.c
index 8d1311f4..0df7989a 100644
--- a/src/sentinel.c
+++ b/src/sentinel.c
@@ -1847,6 +1847,7 @@ void sentinelRefreshInstanceInfo(sentinelRedisInstance *ri, const char *info) {
                             atoi(port), ri->quorum, ri)) != NULL)
                 {
                     sentinelEvent(REDIS_NOTICE,"+slave",slave,"%@");
+                    sentinelFlushConfig();
                 }
             }
         }