diff --git a/src/backends/reference/test/RefWorkloadFactoryHelper.hpp b/src/backends/reference/test/RefWorkloadFactoryHelper.hpp
index 10e5b9f..30d2037 100644
--- a/src/backends/reference/test/RefWorkloadFactoryHelper.hpp
+++ b/src/backends/reference/test/RefWorkloadFactoryHelper.hpp
@@ -25,7 +25,7 @@
     static armnn::RefWorkloadFactory GetFactory(
         const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager = nullptr)
     {
-        boost::ignore_unused(memoryManager);
+        IgnoreUnused(memoryManager);
         return armnn::RefWorkloadFactory();
     }
 };