diff --git a/modules/system/devices/networking/mycelium/default.nix b/modules/system/devices/networking/mycelium/default.nix
index f8a21214..82ae571d 100644
--- a/modules/system/devices/networking/mycelium/default.nix
+++ b/modules/system/devices/networking/mycelium/default.nix
@@ -14,5 +14,5 @@
     ];
   };
 
-  environment.persistence."/persist".directories = [ "/var/lib/private/mycelium" ];
+  environment.persistence."/persist".directories = [ { directory = "/var/lib/private/mycelium"; mode = "0700"; } ];
 }