diff --git a/Locomotives/Locomotives/SetLocomotivesGeneric.cs b/Locomotives/Locomotives/SetLocomotivesGeneric.cs
index dafe755..fe6a69d 100644
--- a/Locomotives/Locomotives/SetLocomotivesGeneric.cs
+++ b/Locomotives/Locomotives/SetLocomotivesGeneric.cs
@@ -28,12 +28,9 @@
         /// <returns></returns>
         public int Insert(T locomotive)
         {
-            for (int i = 0; i < _places.Count; i++)
+            if (_places.Contains(locomotive))
             {
-                if (locomotive.Equals(_places[i]))
-                {
-                    throw new NotUniqueObjectException();
-                }
+                throw new NotUniqueObjectException();
             }
             if (_places.Count == 0)
             {