diff --git a/src/backends/reference/RefWorkloadFactory.cpp b/src/backends/reference/RefWorkloadFactory.cpp
index 254b221..8c08274 100644
--- a/src/backends/reference/RefWorkloadFactory.cpp
+++ b/src/backends/reference/RefWorkloadFactory.cpp
@@ -481,4 +481,10 @@
     return std::make_unique<RefSliceWorkload>(descriptor, info);
 }
 
+std::unique_ptr<armnn::IWorkload> RefWorkloadFactory::CreateInstanceNormalization(
+    const InstanceNormalizationQueueDescriptor& descriptor, const WorkloadInfo& info) const
+{
+    return std::make_unique<RefInstanceNormalizationWorkload>(descriptor, info);
+}
+
 } // namespace armnn