diff --git a/Source/Model/Reader/NMR_ModelReaderNode_ModelBase.cpp b/Source/Model/Reader/NMR_ModelReaderNode_ModelBase.cpp
index 773318837..710ac8867 100644
--- a/Source/Model/Reader/NMR_ModelReaderNode_ModelBase.cpp
+++ b/Source/Model/Reader/NMR_ModelReaderNode_ModelBase.cpp
@@ -159,23 +159,25 @@ namespace NMR {
 			if (m_pModel->hasMetaData(sKey)) {
 				m_pWarnings->addWarning(NMR_ERROR_DUPLICATEMETADATA, mrwInvalidOptionalValue);
 			}
-			std::string sNameSpace, sName;
-			decomposeKeyIntoNamespaceAndName(sKey, sNameSpace, sName);
-			if (!sNameSpace.empty()) {
-				std::string sNameSpaceURI;
-				if (!pXMLReader->GetNamespaceURI(sNameSpace, sNameSpaceURI)) {
-					m_pWarnings->addException(CNMRException(NMR_ERROR_METADATA_COULDNOTGETNAMESPACE), mrwInvalidOptionalValue);
-					sNameSpaceURI = sNameSpace;
-				}
-				m_pModel->addMetaData(sNameSpaceURI, sName, sValue, sType, bPreserve);
-			}
 			else {
-				// default namespace
-				if (CModelMetaData::isValidNamespaceAndName("", sName)) {
-					m_pModel->addMetaData("", sName, sValue, sType, bPreserve);
+				std::string sNameSpace, sName;
+				decomposeKeyIntoNamespaceAndName(sKey, sNameSpace, sName);
+				if (!sNameSpace.empty()) {
+					std::string sNameSpaceURI;
+					if (!pXMLReader->GetNamespaceURI(sNameSpace, sNameSpaceURI)) {
+						m_pWarnings->addException(CNMRException(NMR_ERROR_METADATA_COULDNOTGETNAMESPACE), mrwInvalidOptionalValue);
+						sNameSpaceURI = sNameSpace;
+					}
+					m_pModel->addMetaData(sNameSpaceURI, sName, sValue, sType, bPreserve);
+				}
+				else {
+					// default namespace
+					if (CModelMetaData::isValidNamespaceAndName("", sName)) {
+						m_pModel->addMetaData("", sName, sValue, sType, bPreserve);
+					}
+					else
+						m_pWarnings->addException(CNMRException(NMR_ERROR_UNKNOWNMETADATA), mrwInvalidOptionalValue);
 				}
-				else
-					m_pWarnings->addException(CNMRException(NMR_ERROR_UNKNOWNMETADATA), mrwInvalidOptionalValue);
 			}
 		}
 		else {
diff --git a/Source/Model/Reader/v100/NMR_ModelReaderNode100_MetaDataGroup.cpp b/Source/Model/Reader/v100/NMR_ModelReaderNode100_MetaDataGroup.cpp
index e9a872d55..4f26023d6 100644
--- a/Source/Model/Reader/v100/NMR_ModelReaderNode100_MetaDataGroup.cpp
+++ b/Source/Model/Reader/v100/NMR_ModelReaderNode100_MetaDataGroup.cpp
@@ -76,23 +76,25 @@ namespace NMR {
 					if (m_MetaDataGroup->hasMetaData(sKey)) {
 						m_pWarnings->addWarning(NMR_ERROR_DUPLICATEMETADATA, mrwInvalidOptionalValue);
 					}
-					std::string sNameSpace, sName;
-					decomposeKeyIntoNamespaceAndName(sKey, sNameSpace, sName);
-					if (!sNameSpace.empty()) {
-						std::string sNameSpaceURI;
-						if (!pXMLReader->GetNamespaceURI(sNameSpace, sNameSpaceURI)) {
-							m_pWarnings->addException(CNMRException(NMR_ERROR_METADATA_COULDNOTGETNAMESPACE), mrwInvalidOptionalValue);
-							sNameSpaceURI = sNameSpace;
-						}
-						m_MetaDataGroup->addMetaData(sNameSpaceURI, sName, sValue, sType, bPreserve);
-					}
 					else {
-						// default namespace
-						if (CModelMetaData::isValidNamespaceAndName("", sName)) {
-							m_MetaDataGroup->addMetaData("", sName, sValue, sType, bPreserve);
+						std::string sNameSpace, sName;
+						decomposeKeyIntoNamespaceAndName(sKey, sNameSpace, sName);
+						if (!sNameSpace.empty()) {
+							std::string sNameSpaceURI;
+							if (!pXMLReader->GetNamespaceURI(sNameSpace, sNameSpaceURI)) {
+								m_pWarnings->addException(CNMRException(NMR_ERROR_METADATA_COULDNOTGETNAMESPACE), mrwInvalidOptionalValue);
+								sNameSpaceURI = sNameSpace;
+							}
+							m_MetaDataGroup->addMetaData(sNameSpaceURI, sName, sValue, sType, bPreserve);
+						}
+						else {
+							// default namespace
+							if (CModelMetaData::isValidNamespaceAndName("", sName)) {
+								m_MetaDataGroup->addMetaData("", sName, sValue, sType, bPreserve);
+							}
+							else
+								m_pWarnings->addException(CNMRException(NMR_ERROR_UNKNOWNMETADATA), mrwInvalidOptionalValue);
 						}
-						else
-							m_pWarnings->addException(CNMRException(NMR_ERROR_UNKNOWNMETADATA), mrwInvalidOptionalValue);
 					}
 				}
 				else {