diff --git a/stimBuffApis/livoxGen1/pcloudStimulusBuffer.cpp b/stimBuffApis/livoxGen1/pcloudStimulusBuffer.cpp
index 57a9f34..e466180 100644
--- a/stimBuffApis/livoxGen1/pcloudStimulusBuffer.cpp
+++ b/stimBuffApis/livoxGen1/pcloudStimulusBuffer.cpp
@@ -27,10 +27,16 @@ PcloudStimulusBuffer::PcloudStimulusBuffer(
 		openClInputConstraints,
 		device->componentThread->getIoService()),
 device(device),
-formatDesc(formatDesc), assemblyBuffer(
-	StagingBuffer::InputEngineConstraints::ioUringConstraints,
-	OpenClConstraints(), nDgramsPerStagingBufferFrame),
-ioUringAssemblyEngine(*this)
+formatDesc(formatDesc),
+assemblyBuffer(
+	StagingBuffer::IOEngineConstraints::ioUringConstraints,
+	StagingBuffer::IOEngineConstraints::openClInputConstraints,
+	nDgramsPerStagingBufferFrame),
+ioUringAssemblyEngine(*this),
+collationBuffer(
+	StagingBuffer::IOEngineConstraints::openClInputConstraints,
+	StagingBuffer::IOEngineConstraints::openClInputConstraints,
+	nDgramsPerStagingBufferFrame)
 {
 	std::cout << __func__ << ": Device's component thread is "
 		<< device->componentThread->name << std::endl;
diff --git a/stimBuffApis/livoxGen1/pcloudStimulusBuffer.h b/stimBuffApis/livoxGen1/pcloudStimulusBuffer.h
index ebbc32d..341eb55 100644
--- a/stimBuffApis/livoxGen1/pcloudStimulusBuffer.h
+++ b/stimBuffApis/livoxGen1/pcloudStimulusBuffer.h
@@ -59,6 +59,7 @@ public:
 	PcloudFormatDesc formatDesc;
 	StagingBuffer assemblyBuffer;
 	IoUringAssemblyEngine ioUringAssemblyEngine;
+	StagingBuffer collationBuffer;
 
 private:
 	class AssembleAndProduceStimulusFrameReq;