diff --git a/CPPCheckPlugin/CPPCheckPlugin.csproj b/CPPCheckPlugin/CPPCheckPlugin.csproj
index 54e2381..f21b082 100644
--- a/CPPCheckPlugin/CPPCheckPlugin.csproj
+++ b/CPPCheckPlugin/CPPCheckPlugin.csproj
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="4.0">
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="12.0">
   <PropertyGroup>
-    <MinimumVisualStudioVersion>11.0</MinimumVisualStudioVersion>
+    <MinimumVisualStudioVersion>12.0</MinimumVisualStudioVersion>
     <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">11.0</VisualStudioVersion>
     <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
     <FileUpgradeFlags>
@@ -47,6 +47,9 @@
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="Microsoft.VisualStudio.OLE.Interop" />
     <Reference Include="Microsoft.VisualStudio.Shell.Interop" />
+    <Reference Include="Microsoft.VisualStudio.Shell.Interop.12.0, Version=12.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <EmbedInteropTypes>True</EmbedInteropTypes>
+    </Reference>
     <Reference Include="Microsoft.VisualStudio.Shell.Interop.8.0" />
     <Reference Include="Microsoft.VisualStudio.Shell.Interop.9.0" />
     <Reference Include="Microsoft.VisualStudio.Shell.Interop.10.0" />
@@ -140,7 +143,9 @@
     </EmbeddedResource>
   </ItemGroup>
   <ItemGroup>
-    <None Include="app.config" />
+    <None Include="app.config">
+      <SubType>Designer</SubType>
+    </None>
     <None Include="Properties\Settings.settings">
       <Generator>SettingsSingleFileGenerator</Generator>
       <LastGenOutput>Settings.Designer.cs</LastGenOutput>
@@ -172,24 +177,34 @@
     <Page Include="CppcheckMessagesList.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
     </Page>
     <Page Include="CppcheckSettings.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
     </Page>
     <Page Include="MainToolWindowUI.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
     </Page>
     <Page Include="SuppressionsSettingsUI\ItemsListEditor.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
     </Page>
     <Page Include="SuppressionsSettingsUI\SuppressionsSettings.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
     </Page>
   </ItemGroup>
   <PropertyGroup>
diff --git a/CPPCheckPlugin/source.extension.vsixmanifest b/CPPCheckPlugin/source.extension.vsixmanifest
index ca303da..2ff28c5 100644
--- a/CPPCheckPlugin/source.extension.vsixmanifest
+++ b/CPPCheckPlugin/source.extension.vsixmanifest
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <PackageManifest Version="2.0.0" xmlns="http://schemas.microsoft.com/developer/vsx-schema/2011" xmlns:d="http://schemas.microsoft.com/developer/vsx-schema-design/2011">
   <Metadata>
-    <Identity Id="127d8bd3-8cd7-491a-9a63-9b4e89118da9" Version="1.2.1" Language="en-US" Publisher="-" />
+    <Identity Id="127d8bd3-8cd7-491a-9a63-9b4e89118da9" Version="1.3.1" Language="en-US" Publisher="-" />
     <DisplayName>cppcheck add-in</DisplayName>
     <Description xml:space="preserve">Integration for cppcheck - C/C++ code static analysis tool </Description>
     <License>PackageInstallerLicense.txt</License>