diff --git a/04 - Array Cardio Day 1/index-FINISHED.html b/04 - Array Cardio Day 1/index-FINISHED.html
index e61b94c006..ede883f1f9 100644
--- a/04 - Array Cardio Day 1/index-FINISHED.html	
+++ b/04 - Array Cardio Day 1/index-FINISHED.html	
@@ -81,8 +81,8 @@
     // 7. sort Exercise
     // Sort the people alphabetically by last name
     const alpha = people.sort((lastOne, nextOne) => {
-      const [aFirst, aLast] = lastOne.split(', ');
-      const [bFirst, bLast] = nextOne.split(', ');
+      const [aLast, aFirst] = lastOne.split(', ');
+      const [bLast, bFirst] = nextOne.split(', ');
       return aLast > bLast ? 1 : -1;
     });
     console.log(alpha);