diff --git a/nixos/config/muon.nix b/nixos/config/muon.nix
index 486db4c..757f764 100644
--- a/nixos/config/muon.nix
+++ b/nixos/config/muon.nix
@@ -189,9 +189,6 @@ imports = [
 
         INTEL_RAPL = true;
 
-        EXT4_FS = true;
-        EXT4_USE_FOR_EXT2 = true;
-        EXT4_FS_POSIX_ACL = true;
         BTRFS_FS = true;
         BTRFS_FS_POSIX_ACL = true;
         FUSE_FS = true;
diff --git a/nixos/config/solitary/configuration.nix b/nixos/config/solitary/configuration.nix
index dd5436b..4ed0822 100644
--- a/nixos/config/solitary/configuration.nix
+++ b/nixos/config/solitary/configuration.nix
@@ -43,9 +43,6 @@ in {
     extraConfig = linux-hardened.profile.paravirt // (with self.lib.kernel; {
       NR_CPUS = 8;
 
-      EXT4_FS = true;
-      EXT4_USE_FOR_EXT2 = true;
-      EXT4_FS_POSIX_ACL = true;
       BTRFS_FS = true;
       BTRFS_FS_POSIX_ACL = true;
     });
diff --git a/package/linux-hardened/config.nix b/package/linux-hardened/config.nix
index 2088a1b..04026d0 100644
--- a/package/linux-hardened/config.nix
+++ b/package/linux-hardened/config.nix
@@ -537,6 +537,10 @@
   };
 
   filesystem = {
+    EXT4_FS = true;
+    EXT4_USE_FOR_EXT2 = true;
+    EXT4_FS_POSIX_ACL = true;
+
     OVERLAY_FS = true;
     OVERLAY_FS_REDIRECT_DIR = true;
     OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW = false;