diff --git a/modules/60-methods-using/80-stdlib/Exercise.csx b/modules/60-methods-using/80-stdlib/Exercise.csx
index e0c89be..eda1e98 100644
--- a/modules/60-methods-using/80-stdlib/Exercise.csx
+++ b/modules/60-methods-using/80-stdlib/Exercise.csx
@@ -2,6 +2,6 @@ var war = "War of the Kings";
 var missingWord = "Five ";
 
 // BEGIN
-var kingWordIndex = war.IndexOf('K');
+var kingWordIndex = war.IndexOf("Kings");
 Console.WriteLine(war.Insert(kingWordIndex, missingWord));
 // END