diff --git a/src/CppAst/CppContainerList.cs b/src/CppAst/CppContainerList.cs
index aa3bb3a..c8da749 100644
--- a/src/CppAst/CppContainerList.cs
+++ b/src/CppAst/CppContainerList.cs
@@ -15,7 +15,7 @@ namespace CppAst
     /// <typeparam name="TElement"></typeparam>
     [DebuggerTypeProxy(typeof(CppContainerListDebugView<>))]
     [DebuggerDisplay("Count = {Count}")]
-    public class CppContainerList<TElement> : IList<TElement> where TElement : CppElement
+    public class CppContainerList<TElement> : IList<TElement>, IReadOnlyList<TElement> where TElement : CppElement
     {
         private readonly List<TElement> _elements;