diff --git a/nixos/modules/monitoring/server/grafana.nix b/nixos/modules/monitoring/server/grafana.nix
index 1306c37fe363478b7110146d25dc1e7ea590d3e2..0923885f86d9bcebc4d3df590c71fbcddd8d1df8 100644
--- a/nixos/modules/monitoring/server/grafana.nix
+++ b/nixos/modules/monitoring/server/grafana.nix
@@ -187,7 +187,7 @@ in {
           # Only allow our monitoringvpn subnet
           # And localhost since we're the monitoring server currently
           extraConfig = ''
-            allow 172.23.23.0/24;
+            allow ${config.grid.monitoringvpnIPv4}/24;
             allow 127.0.0.1;
             allow ::1;
             deny all;