diff --git a/nixos/common.nix b/nixos/common.nix
index 6e95eb2..e0ba6ca 100644
--- a/nixos/common.nix
+++ b/nixos/common.nix
@@ -120,6 +120,9 @@
   services.flatpak.packages = [
     { appId = "com.snes9x.Snes9x"; origin = "flathub"; }
   ];
+  services.flatpak.overrides = {
+    "com.snes9x.Snes9x".Context.filesystems = "/mnt/data/zelda";
+  };
 
   system.autoUpgrade = {
     enable = true;