diff --git a/module.nix b/module.nix
index ad30856..806d397 100644
--- a/module.nix
+++ b/module.nix
@@ -20,12 +20,12 @@ in {
     };
   };
   config = lib.mkIf (cfg.devices.disk != {}) {
-    system.build.formatScript = pkgs.writers.writeDash "disko-create" ''
+    system.build.formatScript = pkgs.writers.writeBash "disko-create" ''
       export PATH=${lib.makeBinPath (types.diskoLib.packages cfg.devices pkgs)}:$PATH
       ${types.diskoLib.create cfg.devices}
     '';
 
-    system.build.mountScript = pkgs.writers.writeDash "disko-mount" ''
+    system.build.mountScript = pkgs.writers.writeBash "disko-mount" ''
       export PATH=${lib.makeBinPath (types.diskoLib.packages cfg.devices pkgs)}:$PATH
       ${types.diskoLib.mount cfg.devices}
     '';