diff --git a/Generator/StringToolsExtensions.cs b/Generator/StringToolsExtensions.cs
index f7b8d45..32efb9d 100644
--- a/Generator/StringToolsExtensions.cs
+++ b/Generator/StringToolsExtensions.cs
@@ -1,10 +1,12 @@
-using System;
-using System.Collections.Generic;
+using System.Collections.Generic;
 
 namespace Generator
 {
     public static class StringToolsExtensions
     {
+        /// <summary>
+        /// Add a string to a list only if it doesnt already exist
+        /// </summary>
         public static void AddUnique(this IList<string> self, string item)
         {
             if (!self.Contains(item))