diff --git a/storage/redis/kubernetes/redis/redis-statefulset.yaml b/storage/redis/kubernetes/redis/redis-statefulset.yaml
index cd921b6..0503c09 100644
--- a/storage/redis/kubernetes/redis/redis-statefulset.yaml
+++ b/storage/redis/kubernetes/redis/redis-statefulset.yaml
@@ -34,7 +34,7 @@ spec:
               fi
             else
               echo "sentinel found, finding master"
-              MASTER="$(redis-cli -h sentinel -p 5000 sentinel get-master-addr-by-name mymaster | grep -E '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}')"
+              MASTER="$(redis-cli -h sentinel -p 5000 sentinel get-master-addr-by-name mymaster | grep -E '(^redis-\d{1,})|([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})')"
               echo "master found : $MASTER, updating redis.conf"
               echo "slaveof $MASTER 6379" >> /etc/redis/redis.conf
             fi