diff --git a/src/CppParser/AST.cpp b/src/CppParser/AST.cpp
index 89a2abe5..55e4b6b9 100644
--- a/src/CppParser/AST.cpp
+++ b/src/CppParser/AST.cpp
@@ -78,6 +78,10 @@ RawComment::RawComment() : FullComment(0) {}
 
 VTableComponent::VTableComponent() : Offset(0), Declaration(0) {}
 
+// VTableLayout
+VTableLayout::VTableLayout() {}
+DEF_VECTOR(VTableLayout, VTableComponent, Components)
+
 ClassLayout::ClassLayout() : ABI(CppAbi::Itanium) {}
 DEF_VECTOR(ClassLayout, VFTableInfo, VFTables)
 
@@ -415,6 +419,9 @@ DEF_VECTOR(TranslationUnit, MacroDefinition*, Macros)
 DEF_STRING(NativeLibrary, FileName)
 DEF_VECTOR_STRING(NativeLibrary, Symbols)
 
+// ASTContext
+DEF_VECTOR(ASTContext, TranslationUnit*, TranslationUnits)
+
 ClassTemplateSpecialization* ClassTemplate::FindSpecialization(void* ptr)
 {
     return 0;
diff --git a/src/CppParser/AST.h b/src/CppParser/AST.h
index 3e9ca72e..4e040218 100644
--- a/src/CppParser/AST.h
+++ b/src/CppParser/AST.h
@@ -287,6 +287,7 @@ struct CS_API VTableComponent
 
 struct CS_API VTableLayout
 {
+    VTableLayout();
     VECTOR(VTableComponent, Components)
 };