diff --git a/nixos/modules/services/video/frigate.nix b/nixos/modules/services/video/frigate.nix
index 3a0112d04d4b..7bc277f89b20 100644
--- a/nixos/modules/services/video/frigate.nix
+++ b/nixos/modules/services/video/frigate.nix
@@ -669,7 +669,11 @@ in
 
         # Caches
         PrivateTmp = true;
-        CacheDirectory = "frigate";
+        CacheDirectory = [
+          "frigate"
+          # https://github.com/blakeblackshear/frigate/discussions/18129
+          "frigate/model_cache"
+        ];
         CacheDirectoryMode = "0750";
 
         # Sockets/IPC