diff --git a/OutputShapeUtils.cpp b/OutputShapeUtils.cpp
index de27630..a0c624c 100644
--- a/OutputShapeUtils.cpp
+++ b/OutputShapeUtils.cpp
@@ -12,6 +12,11 @@
 
 using namespace armnn;
 
+bool IsDynamicOutput(const TensorInfo& outputInfo)
+{
+    return outputInfo.GetNumElements() == 0u;
+}
+
 TensorShape InferPreluOutputShape(const TensorShape& inputShape, const TensorShape& alphaShape)
 {
     // NOTE: The inferred PReLU output size will be the maximum size along each dimension