diff --git a/src/backends/backendsCommon/test/layerTests/CastTestImpl.cpp b/src/backends/backendsCommon/test/layerTests/CastTestImpl.cpp
index aec57db..92bce4f 100644
--- a/src/backends/backendsCommon/test/layerTests/CastTestImpl.cpp
+++ b/src/backends/backendsCommon/test/layerTests/CastTestImpl.cpp
@@ -113,7 +113,7 @@
                                                const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
                                                const armnn::ITensorHandleFactory& tensorHandleFactory)
 {
-    std::vector<u_int8_t> inputValues = { 1, 3, 1, 3, 1, 3, 1, 3, 1,
+    std::vector<uint8_t> inputValues = { 1, 3, 1, 3, 1, 3, 1, 3, 1,
                                          3, 1, 3, 1, 2, 1, 3, 1, 3 };
     std::vector<float> outputValues  = { 1.0f, 3.0f, 1.0f, 3.0f, 1.0f, 3.0f, 1.0f, 3.0f, 1.0f,
                                          3.0f, 1.0f, 3.0f, 1.0f, 2.0f, 1.0f, 3.0f, 1.0f, 3.0f };