diff --git a/VulkanHppGenerator.cpp b/VulkanHppGenerator.cpp
index 3e209eb..7a1ea63 100644
--- a/VulkanHppGenerator.cpp
+++ b/VulkanHppGenerator.cpp
@@ -6339,12 +6339,6 @@ void VulkanHppGenerator::readStructMember( tinyxml2::XMLElement const * element,
   members.push_back( MemberData( line ) );
   MemberData & memberData = members.back();
 
-  auto valuesIt = attributes.find( "values" );
-  if ( valuesIt != attributes.end() )
-  {
-    memberData.values = valuesIt->second;
-  }
-
   for ( auto child : children )
   {
     std::string value = child->Value();
@@ -6361,6 +6355,18 @@ void VulkanHppGenerator::readStructMember( tinyxml2::XMLElement const * element,
       readStructMemberType( child, memberData );
     }
   }
+
+  auto valuesIt = attributes.find( "values" );
+  if ( valuesIt != attributes.end() )
+  {
+    check( memberData.name == "sType",
+           line,
+           "Structure member named differently than <sType> with attribute <values> encountered: " );
+    check( m_sTypeValues.insert( valuesIt->second ).second,
+           line,
+           "<" + valuesIt->second + "> already encountered as values for the sType member of a struct" );
+    memberData.values = valuesIt->second;
+  }
 }
 
 void VulkanHppGenerator::readStructMemberEnum( tinyxml2::XMLElement const * element, MemberData & memberData )
diff --git a/VulkanHppGenerator.hpp b/VulkanHppGenerator.hpp
index 5a30cf6..6adc775 100644
--- a/VulkanHppGenerator.hpp
+++ b/VulkanHppGenerator.hpp
@@ -592,6 +592,7 @@ private:
   std::map<std::string, std::string>     m_platforms;
   std::map<std::string, std::string>     m_structureAliases;
   std::map<std::string, StructureData>   m_structures;
+  std::set<std::string>                  m_sTypeValues;
   std::set<std::string>                  m_tags;
   std::map<std::string, TypeCategory>    m_types;
   std::string                            m_typesafeCheck;