diff --git a/systems/common/optional/btrfs_scrub.nix b/systems/common/optional/btrfs_scrub.nix
index bc963bd..fd1c981 100644
--- a/systems/common/optional/btrfs_scrub.nix
+++ b/systems/common/optional/btrfs_scrub.nix
@@ -2,6 +2,6 @@
   services.btrfs.autoScrub = {
     enable = true;
     interval = "monthly";
-    fileSystems =  = [ "/" ];
+    fileSystems = [ "/" ];
   };
 }