diff --git a/delegate/classic/src/GatherNd.hpp b/delegate/classic/src/GatherNd.hpp
index 12f0af3..e1ee2ac 100644
--- a/delegate/classic/src/GatherNd.hpp
+++ b/delegate/classic/src/GatherNd.hpp
@@ -5,7 +5,8 @@
 
 #pragma once
 
-#include <DelegateUtils.hpp>
+#include <ClassicDelegateUtils.hpp>
+
 #include <algorithm>
 #include <iterator>
 #include <string>