diff --git a/src/backends/reference/workloads/Maximum.hpp b/src/backends/reference/workloads/Maximum.hpp
index 524afff..97df19d 100644
--- a/src/backends/reference/workloads/Maximum.hpp
+++ b/src/backends/reference/workloads/Maximum.hpp
@@ -10,7 +10,7 @@
 namespace armnn
 {
     template<typename T>
-    struct maximum
+struct maximum : public std::binary_function<T, T, T>
     {
         T
         operator () (const T&  inputData0, const T&  inputData1) const