diff --git a/day05.kts b/day05.kts
index 76a2a8c..4e1903b 100755
--- a/day05.kts
+++ b/day05.kts
@@ -21,7 +21,7 @@ for (page in pagesList) {
     if (isOrdered(page)) {
         orderedMiddleSum += page[page.size / 2]
     } else {
-        val orderedPage = page.sortedWith(Comparator { a, b -> compareByRules(a, b) })
+        val orderedPage = page.sortedWith { a, b -> compareByRules(a, b) }
         unorderedMiddleSum += orderedPage[orderedPage.size / 2]
     }
 }