diff --git a/src/backends/backendsCommon/WorkloadData.hpp b/src/backends/backendsCommon/WorkloadData.hpp
index 8a2dd1f..abaa4f5 100644
--- a/src/backends/backendsCommon/WorkloadData.hpp
+++ b/src/backends/backendsCommon/WorkloadData.hpp
@@ -155,6 +155,11 @@
     void Validate(const WorkloadInfo& workloadInfo) const;
 };
 
+struct CastQueueDescriptor : QueueDescriptor
+{
+    void Validate(const WorkloadInfo& workloadInfo) const;
+};
+
 // Fill layer workload data.
 struct FillQueueDescriptor : QueueDescriptorWithParameters<FillDescriptor>
 {