diff --git a/framework-dotnet/src/lib/MBS.Core/Collections/ExtensionMethods.cs b/framework-dotnet/src/lib/MBS.Core/Collections/ExtensionMethods.cs
index fdd29c9..e76176e 100755
--- a/framework-dotnet/src/lib/MBS.Core/Collections/ExtensionMethods.cs
+++ b/framework-dotnet/src/lib/MBS.Core/Collections/ExtensionMethods.cs
@@ -27,7 +27,7 @@ namespace MBS.Core.Collections
 {
 	public static class ExtensionMethods
 	{
-		public static bool ContainsAny<T>(this IEnumerable enumerable, T[] item)
+		public static bool ContainsAny<T>(this IEnumerable enumerable, IEnumerable<T> item)
 		{
 			foreach (object item1 in enumerable)
 			{