diff --git a/hosts/copper/disko.nix b/hosts/copper/disko.nix
index af624e2..1d60f7f 100644
--- a/hosts/copper/disko.nix
+++ b/hosts/copper/disko.nix
@@ -32,15 +32,15 @@
                   subvolumes = {
                     "/root" = {
                       mountpoint = "/";
-                      mountOptions = [ "compress=zstd" "noatime" ];
+                      mountOptions = [ "compress-force=zstd:1" "noatime" ];
                     };
                     "/home" = {
                       mountpoint = "/home";
-                      mountOptions = [ "compress=zstd" "noatime" "nodev" "nosuid" ];
+                      mountOptions = [ "compress-force=zstd:1" "noatime" "nodev" "nosuid" ];
                     };
                     "/nix" = {
                       mountpoint = "/nix";
-                      mountOptions = [ "compress=zstd" "noatime" "noatime" "nodev" ];
+                      mountOptions = [ "compress-force=zstd:1" "noatime" "noatime" "nodev" ];
                     };
                   };
                 };