diff --git a/Program.cs b/Program.cs
index 98f90c8..5d96f58 100644
--- a/Program.cs
+++ b/Program.cs
@@ -459,6 +459,6 @@ public PatchOperationListBuilder WithSet(object value, Func<PropertyInfo, bool>?
             return this;
         }
 
-        public List<PatchOperation> Build() => _patchOperations;
+        public PatchOperationList Build() => _patchOperations;
     }
 }
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