diff --git a/nixos/modules/services/networking/unifi.nix b/nixos/modules/services/networking/unifi.nix
index 634f760328f7..764b83ff3329 100644
--- a/nixos/modules/services/networking/unifi.nix
+++ b/nixos/modules/services/networking/unifi.nix
@@ -65,6 +65,7 @@ in
         # Create the volatile webapps
         mkdir -p "${stateDir}/webapps"
         chown unifi "${stateDir}/webapps"
+        rm -f "{stateDir}/webapps/ROOT.war"
         ln -s "${pkgs.unifi}/webapps/ROOT.war" "${stateDir}/webapps/ROOT.war"
       '';