diff --git a/home-manager/modules/screenlocker/default.nix b/home-manager/modules/screenlocker/default.nix
index 9f6337c..a370410 100644
--- a/home-manager/modules/screenlocker/default.nix
+++ b/home-manager/modules/screenlocker/default.nix
@@ -18,7 +18,7 @@ let
 
     if ! [[ -e "$IMAGEFILE" ]]
     then
-      convert "$HOME/.config/wallpaper" -gravity Center -background "#000000" -extent "$SCREEN_RESOLUTION" "$IMAGEFILE"
+      convert "$HOME/.config/wallpaper" -gravity Center -background "#000000" -resize "$SCREEN_RESOLUTION^" -extent "$SCREEN_RESOLUTION" "$IMAGEFILE"
     fi
 
     if [[ -e /dev/fd/''${XSS_SLEEP_LOCK_FD:--1} ]]; then