diff --git a/configs/files/xmonad.hs b/configs/files/xmonad.hs
index 853362b..3255628 100644
--- a/configs/files/xmonad.hs
+++ b/configs/files/xmonad.hs
@@ -86,7 +86,7 @@ myRemoveKeys = [
 
 myAdditionalKeys = [
     ("M-q", kill),
-    ("M-x", spawn "~/.xmonad/scripts/lock.sh"),
+    ("M-x", spawn "i3lock -e -f -c 000000 -i ~/.wallpaper.png"),
     ("M-S-h", sendMessage (IncMasterN 1)),
     ("M-S-l", sendMessage (IncMasterN (-1))),
     ("M-S-<Return>", windows W.swapMaster),
diff --git a/configs/xmonad.nix b/configs/xmonad.nix
index de3400c..d623a89 100644
--- a/configs/xmonad.nix
+++ b/configs/xmonad.nix
@@ -21,6 +21,7 @@
     xorg.xwininfo
     xorg.xkill
     scrot
+    i3lock
   ];
   home.keyboard = {
     layout = "fr";
@@ -156,4 +157,9 @@
       };
     };
   };
-}
\ No newline at end of file
+  services.screen-locker = {
+    enable = true;
+    inactiveInterval = 5;
+    lockCmd = "\${pkgs.i3lock}/bin/i3lock -e -f -c 000000 -i ~/.wallpaper.png";
+  };
+}