diff --git a/delegate/classic/src/Lstm.hpp b/delegate/classic/src/Lstm.hpp
index 460c61a..518559f 100644
--- a/delegate/classic/src/Lstm.hpp
+++ b/delegate/classic/src/Lstm.hpp
@@ -5,7 +5,7 @@
 
 #pragma once
 
-#include <DelegateUtils.hpp>
+#include <ClassicDelegateUtils.hpp>
 
 #include <armnn/LstmParams.hpp>
 #include <armnn/Tensor.hpp>