diff --git a/nixos/modules/services/monitoring/munin.nix b/nixos/modules/services/monitoring/munin.nix
index 6d2ce5383687..364f18e7543d 100644
--- a/nixos/modules/services/monitoring/munin.nix
+++ b/nixos/modules/services/monitoring/munin.nix
@@ -76,6 +76,7 @@ let
       # wrapped plugins by makeWrapper being with dots
       ignore_file ^\.
 
+      allow ^::1$
       allow ^127\.0\.0\.1$
 
       ${nodeCfg.extraConfig}