diff --git a/src/Libraries/Microsoft.Extensions.AI/Functions/AIFunctionFactory.cs b/src/Libraries/Microsoft.Extensions.AI/Functions/AIFunctionFactory.cs
index 24f5a96d75d..ad796e5ef5b 100644
--- a/src/Libraries/Microsoft.Extensions.AI/Functions/AIFunctionFactory.cs
+++ b/src/Libraries/Microsoft.Extensions.AI/Functions/AIFunctionFactory.cs
@@ -5,7 +5,6 @@
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Diagnostics;
-using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using System.Linq;
 using System.Reflection;