diff --git a/src/backends/reference/workloads/Pooling2d.cpp b/src/backends/reference/workloads/Pooling2d.cpp
index d2fd0da..a9cac32 100644
--- a/src/backends/reference/workloads/Pooling2d.cpp
+++ b/src/backends/reference/workloads/Pooling2d.cpp
@@ -135,6 +135,8 @@
     }
 }
 
+using namespace armnnUtils;
+
 namespace armnn
 {
 
@@ -144,7 +146,7 @@
                const TensorInfo& outputInfo,
                const Pooling2dDescriptor& params)
 {
-    const armnn::DataLayoutIndexed dataLayout = params.m_DataLayout;
+    const DataLayoutIndexed dataLayout = params.m_DataLayout;
     auto channelsIndex = dataLayout.GetChannelsIndex();
     auto heightIndex = dataLayout.GetHeightIndex();
     auto widthIndex = dataLayout.GetWidthIndex();