diff --git a/nixos/modules/services/video/frigate.nix b/nixos/modules/services/video/frigate.nix
index efe9abd37a01..d937eb60bdea 100644
--- a/nixos/modules/services/video/frigate.nix
+++ b/nixos/modules/services/video/frigate.nix
@@ -578,7 +578,7 @@ in
               add_header Cache-Control "public";
             '';
           };
-          "~ ^/.*-([A-Za-z0-9]+)\.webmanifest$" = {
+          "~ ^/.*-([A-Za-z0-9]+)\\.webmanifest$" = {
             root = cfg.package.web;
             extraConfig = ''
               access_log off;