diff --git a/lldb/source/Plugins/SymbolFile/NativePDB/UdtRecordCompleter.h b/lldb/source/Plugins/SymbolFile/NativePDB/UdtRecordCompleter.h
--- a/lldb/source/Plugins/SymbolFile/NativePDB/UdtRecordCompleter.h
+++ b/lldb/source/Plugins/SymbolFile/NativePDB/UdtRecordCompleter.h
@@ -57,6 +57,7 @@
   llvm::DenseMap<lldb::opaque_compiler_type_t,
                  llvm::SmallSet<std::pair<llvm::StringRef, CompilerType>, 8>>
       &m_cxx_record_map;
+  bool has_virtual_base = false;
 
 public:
   UdtRecordCompleter(
diff --git a/lldb/source/Plugins/SymbolFile/NativePDB/UdtRecordCompleter.cpp b/lldb/source/Plugins/SymbolFile/NativePDB/UdtRecordCompleter.cpp
--- a/lldb/source/Plugins/SymbolFile/NativePDB/UdtRecordCompleter.cpp
+++ b/lldb/source/Plugins/SymbolFile/NativePDB/UdtRecordCompleter.cpp
@@ -123,6 +123,7 @@
 
 Error UdtRecordCompleter::visitKnownMember(CVMemberRecord &cvr,
                                            VirtualBaseClassRecord &base) {
+  has_virtual_base = true;
   AddBaseClassForTypeIndex(base.BaseType, base.getAccess(), base.VTableIndex);
 
   return Error::success();
@@ -312,6 +313,17 @@
   TypeSystemClang::CompleteTagDeclarationDefinition(m_derived_ct);
 
   if (auto *record_decl = llvm::dyn_cast<clang::CXXRecordDecl>(&m_tag_decl)) {
+    clang::MSInheritanceAttr::Spelling spelling;
+    if (has_virtual_base)
+      spelling = clang::MSInheritanceAttr::Keyword_virtual_inheritance;
+    else if (bases.size() > 1)
+      spelling = clang::MSInheritanceAttr::Keyword_multiple_inheritance;
+    else
+      spelling = clang::MSInheritanceAttr::Keyword_single_inheritance;
+    clang::MSInheritanceAttr *inheritance_attr =
+        clang::MSInheritanceAttr::CreateImplicit(
+            m_ast_builder.clang().getASTContext(), spelling);
+    record_decl->addAttr(inheritance_attr);
     m_ast_builder.importer().SetRecordLayout(record_decl, m_layout);
   }
 }