diff --git a/nixos/modules/config/swap.nix b/nixos/modules/config/swap.nix
index 7d4654ae287..fb171050d3e 100644
--- a/nixos/modules/config/swap.nix
+++ b/nixos/modules/config/swap.nix
@@ -72,11 +72,8 @@ with utils;
         };
 
         config = {
-          device =
-            if options.label.isDefined then
-              "/dev/disk/by-label/${config.label}"
-            else
-              mkNotdef;
+          device = mkIf options.label.isDefined
+            "/dev/disk/by-label/${config.label}";
         };
 
       };