diff --git a/README.md b/README.md
index 52798b840d9789e5c7d55deac4f98c39b951a60a..6fc304ad8737319b806970a443bce85a78660288 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ Monitors status of Huawei BGP peers (HUAWEI-BGP-VPN-MIB)
 ----
 ### Check Info:
 
-* *service*: this check creates one service for each peer/address family  (IPv4 and IPv6)
+* *service*: this check creates one service for each peer/address family  (IPv4 and IPv6) [see bgp_peer service](https://thl-cmk.hopto.org/gitlab/checkmk/vendor-independent/bgp_peer/-/blob/master/README.md "BGP peer readme.md")
 * *state*: \
     **critical**: if Peer state is idle or if *hwBgpPeerUnAvaiReason* not 0\
     **warning**: if Peer state is not idle and not established, if Peer uptime < min. uptime