diff --git a/Source/Model/Reader/v100/NMR_ModelReaderNode100_Build.cpp b/Source/Model/Reader/v100/NMR_ModelReaderNode100_Build.cpp
index c7ae2de..399ef47 100644
--- a/Source/Model/Reader/v100/NMR_ModelReaderNode100_Build.cpp
+++ b/Source/Model/Reader/v100/NMR_ModelReaderNode100_Build.cpp
@@ -65,9 +65,9 @@ namespace NMR {
 			{
 				m_pWarnings->addException(CNMRException(NMR_ERROR_MISSINGUUID), mrwMissingMandatoryValue);
 			}
-			m_UUID = std::make_shared<CUUID>();
+			// m_UUID = std::make_shared<CUUID>();
 		}
-		m_pModel->setBuildUUID(m_UUID);
+		m_pModel->setBuildUUID(m_UUID);		
 	}
 
 	void CModelReaderNode100_Build::OnAttribute(_In_z_ const nfChar * pAttributeName, _In_z_ const nfChar * pAttributeValue)
diff --git a/Source/Model/Reader/v100/NMR_ModelReaderNode100_BuildItem.cpp b/Source/Model/Reader/v100/NMR_ModelReaderNode100_BuildItem.cpp
index 702d974..4fc7e25 100644
--- a/Source/Model/Reader/v100/NMR_ModelReaderNode100_BuildItem.cpp
+++ b/Source/Model/Reader/v100/NMR_ModelReaderNode100_BuildItem.cpp
@@ -110,7 +110,7 @@ namespace NMR {
 			if (pXMLReader->NamespaceRegistered(XML_3MF_NAMESPACE_PRODUCTIONSPEC)) {
 				m_pWarnings->addException(CNMRException(NMR_ERROR_MISSINGUUID), mrwMissingMandatoryValue);
 			}
-			m_UUID = std::make_shared<CUUID>();
+		//	m_UUID = std::make_shared<CUUID>();
 		}
 		pBuildItem->setUUID(m_UUID);
 		pBuildItem->setPath(m_sPath);
diff --git a/Source/Model/Reader/v100/NMR_ModelReaderNode100_Object.cpp b/Source/Model/Reader/v100/NMR_ModelReaderNode100_Object.cpp
index 504e42d..c035d33 100644
--- a/Source/Model/Reader/v100/NMR_ModelReaderNode100_Object.cpp
+++ b/Source/Model/Reader/v100/NMR_ModelReaderNode100_Object.cpp
@@ -122,7 +122,7 @@ namespace NMR {
 			if (pXMLReader->NamespaceRegistered(XML_3MF_NAMESPACE_PRODUCTIONSPEC)) {
 				m_pWarnings->addException(CNMRException(NMR_ERROR_MISSINGUUID), mrwMissingMandatoryValue);
 			}
-			m_UUID = std::make_shared<CUUID>();
+			// m_UUID = std::make_shared<CUUID>();
 		}
 		m_pObject->setUUID(m_UUID);
 	}