diff --git a/modules/home-manager/desktop/sway/includes/swayidle.nix b/modules/home-manager/desktop/sway/includes/swayidle.nix
index 5a274da..577621c 100644
--- a/modules/home-manager/desktop/sway/includes/swayidle.nix
+++ b/modules/home-manager/desktop/sway/includes/swayidle.nix
@@ -10,7 +10,7 @@ in
       timeouts = [
         {
           timeout = 300;
-          command = "${pkgs.swaylock}/bin/swaylock -f";
+          command = if cfg.swaylock.useNullPackage then ''/usr/bin/swaylock -f'' else ''${pkgs.swaylock}/bin/swaylock -f'';
         }
         {
           timeout = 600;
@@ -21,11 +21,11 @@ in
       events = [
         {
           event = "before-sleep";
-          command = if cfg.swaylock.useNullPackage then "swaylock" else "${pkgs.swaylock}/bin/swaylock";
+          command = if cfg.swaylock.useNullPackage then ''/usr/bin/swaylock -f'' else ''${pkgs.swaylock}/bin/swaylock -f'';
         }
         {
           event = "lock";
-          command = if cfg.swaylock.useNullPackage then "swaylock" else "${pkgs.swaylock}/bin/swaylock";
+          command = if cfg.swaylock.useNullPackage then ''usr/bin/swaylock -f'' else ''${pkgs.swaylock}/bin/swaylock -f'';
         }
       ];
     };