diff --git a/nodes/main.py b/nodes/main.py
index 054d6e8..95f9685 100644
--- a/nodes/main.py
+++ b/nodes/main.py
@@ -131,6 +131,7 @@ class PeeringManager:
     def __generate_wg_conf(self, peering: dict):
         return render_template("wireguard.template.conf", peering=peering)
     def __generate_bird_conf(self, peering: dict):
+        peering["MNT"] = peering["MNT"].replace("-","_")
         return render_template("bgp-peer.template.conf", peering=peering)
 
     def __install_peering(self, mode: str, peering: dict):