diff --git a/src/generator/Class.cs b/src/generator/Class.cs
index 25409498..b675b107 100644
--- a/src/generator/Class.cs
+++ b/src/generator/Class.cs
@@ -119,26 +119,37 @@ class Class
 			decl.Members.Add (ptrField);
 		}
 
+		var implTypeInfo = new CodeFieldReferenceExpression (new CodeFieldReferenceExpression { FieldName = "impl" }, "TypeInfo");
+		CodeStatement [] initNonPrimaryBases = null;
+		if (BaseClasses.Count > 1) {
+			initNonPrimaryBases = new CodeStatement [BaseClasses.Count - 1];
+			for (var i = 1; i <= initNonPrimaryBases.Length; i++) {
+				initNonPrimaryBases [i - 1] = new CodeExpressionStatement (new CodeObjectCreateExpression (BaseClasses [i].Name, implTypeInfo));
+			}
+		}
+
 		var nativeCtor = new CodeConstructor () {
 			Attributes = MemberAttributes.Public
 		};
-		nativeCtor.Parameters.Add (new CodeParameterDeclarationExpression (new CodeTypeReference ("CppInstancePtr"), "native"));
-		nativeCtor.Statements.Add (new CodeAssignStatement (new CodeFieldReferenceExpression (null, "native_ptr"), new CodeArgumentReferenceExpression ("native")));
 		if (hasBase) {
-			var implTypeInfo = new CodeFieldReferenceExpression (new CodeFieldReferenceExpression { FieldName = "impl" }, "TypeInfo");
 			nativeCtor.BaseConstructorArgs.Add (implTypeInfo);
+			if (initNonPrimaryBases != null)
+				nativeCtor.Statements.AddRange (initNonPrimaryBases);
 		}
+		nativeCtor.Parameters.Add (new CodeParameterDeclarationExpression (new CodeTypeReference ("CppInstancePtr"), "native"));
+		nativeCtor.Statements.Add (new CodeAssignStatement (new CodeFieldReferenceExpression (null, "native_ptr"), new CodeArgumentReferenceExpression ("native")));
 		decl.Members.Add (nativeCtor);
 
 		var subclassCtor = new CodeConstructor () {
 				Attributes = MemberAttributes.Public
 		};
-		subclassCtor.Parameters.Add (new CodeParameterDeclarationExpression (new CodeTypeReference ("CppTypeInfo"), "subClass"));
-		subclassCtor.Statements.Add (new CodeExpressionStatement (new CodeMethodInvokeExpression (new CodeMethodReferenceExpression (new CodeArgumentReferenceExpression ("subClass"), "AddBase"), new CodeExpression [] { new CodeFieldReferenceExpression (new CodeFieldReferenceExpression (null, "impl"), "TypeInfo") })));
 		if (hasBase) {
-			var implTypeInfo = new CodeFieldReferenceExpression (new CodeFieldReferenceExpression { FieldName = "impl" }, "TypeInfo");
 			subclassCtor.BaseConstructorArgs.Add (implTypeInfo);
+			if (initNonPrimaryBases != null)
+				subclassCtor.Statements.AddRange (initNonPrimaryBases);
 		}
+		subclassCtor.Parameters.Add (new CodeParameterDeclarationExpression (new CodeTypeReference ("CppTypeInfo"), "subClass"));
+		subclassCtor.Statements.Add (new CodeExpressionStatement (new CodeMethodInvokeExpression (new CodeMethodReferenceExpression (new CodeArgumentReferenceExpression ("subClass"), "AddBase"), new CodeExpression [] { new CodeFieldReferenceExpression (new CodeFieldReferenceExpression (null, "impl"), "TypeInfo") })));
 		decl.Members.Add (subclassCtor);
 
 		if (!hasBase) {
@@ -155,6 +166,8 @@ class Class
 				Name = "Dispose",
 				Attributes = MemberAttributes.Public
 		};
+		if (hasBase)
+			disposeMethod.Attributes |= MemberAttributes.Override;
 		if (Methods.Any (m => m.IsDestructor))
 			disposeMethod.Statements.Add (new CodeExpressionStatement (new CodeMethodInvokeExpression (new CodeMethodReferenceExpression (new CodeFieldReferenceExpression (null, "impl"), "Destruct"), new CodeExpression [] { new CodeFieldReferenceExpression (null, "Native") })));
 		disposeMethod.Statements.Add (new CodeExpressionStatement (new CodeMethodInvokeExpression (new CodeMethodReferenceExpression (new CodeFieldReferenceExpression (null, "Native"), "Dispose"))));
@@ -166,8 +179,11 @@ class Class
 			if (m.GenWrapperMethod) {
 				var cm = m.GenerateWrapperMethod (g);
 				if (m.IsConstructor && hasBase) {
-					var implTypeInfo = new CodeFieldReferenceExpression (new CodeFieldReferenceExpression { FieldName = "impl" }, "TypeInfo");
 					(cm as CodeConstructor).BaseConstructorArgs.Add (implTypeInfo);
+					if (initNonPrimaryBases != null) {
+						foreach (var init in initNonPrimaryBases.Reverse ())
+							cm.Statements.Insert (0, init);
+					}
 				}
 				decl.Members.Add (cm);
 			}
diff --git a/src/generator/generator.csproj b/src/generator/generator.csproj
index 716bafe1..be4c5db9 100644
--- a/src/generator/generator.csproj
+++ b/src/generator/generator.csproj
@@ -35,17 +35,16 @@
     <DebugSymbols>true</DebugSymbols>
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
-    <OutputPath>bin\Debug</OutputPath>
+    <OutputPath>..\..\bin\Debug</OutputPath>
     <DefineConstants>DEBUG</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
-    <Commandlineparameters>-f=QObject.xml -o=output</Commandlineparameters>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>none</DebugType>
     <Optimize>false</Optimize>
-    <OutputPath>bin\Release</OutputPath>
+    <OutputPath>..\..\bin\Release</OutputPath>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
@@ -68,7 +67,7 @@
     <Reference Include="System.Xml.Linq">
     </Reference>
     <Reference Include="System.Core" />
-    <Reference Include="Mono.VisualC.Interop, Version=1.0.4164.32966, Culture=neutral, PublicKeyToken=null">
+    <Reference Include="Mono.VisualC.Interop, Version=1.0.4175.35169, Culture=neutral, PublicKeyToken=null">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\bin\Debug\Mono.VisualC.Interop.dll</HintPath>
     </Reference>