diff --git a/ILRuntime/Runtime/CLRBinding/BindingCodeGenerator.cs b/ILRuntime/Runtime/CLRBinding/BindingCodeGenerator.cs
index 67b7e782..4bbaa3c5 100644
--- a/ILRuntime/Runtime/CLRBinding/BindingCodeGenerator.cs
+++ b/ILRuntime/Runtime/CLRBinding/BindingCodeGenerator.cs
@@ -42,6 +42,7 @@ public static void GenerateBindingCode(List<Type> types, string outputPath,
 using System.Collections.Generic;
 using System.Reflection;
 using System.Runtime.InteropServices;
+using System.Linq;
 
 using ILRuntime.CLR.TypeSystem;
 using ILRuntime.CLR.Method;