diff --git a/Greenshot/Greenshot.csproj b/Greenshot/Greenshot.csproj
index c468e7c6a..ed93d9803 100644
--- a/Greenshot/Greenshot.csproj
+++ b/Greenshot/Greenshot.csproj
@@ -210,7 +210,7 @@
     <Compile Include="Forms\MovableShowColorForm.Designer.cs">
       <DependentUpon>MovableShowColorForm.cs</DependentUpon>
     </Compile>
-    <Compile Include="Helpers\AviHelper.cs" />
+    <None Include="Helpers\AviHelper.cs" />
     <Compile Include="Helpers\CaptureHelper.cs" />
     <Compile Include="Helpers\ClipboardHelper.cs" />
     <Compile Include="Helpers\Colors.cs" />
@@ -233,7 +233,7 @@
     <Compile Include="Memento\IMemento.cs" />
     <Compile Include="Memento\DrawableContainerBoundsChangeMemento.cs" />
     <Compile Include="Memento\SurfaceBackgroundChangeMemento.cs" />
-    <Compile Include="Helpers\ScreenCaptureHelper.cs" />
+    <None Include="Helpers\ScreenCaptureHelper.cs" />
     <Compile Include="Helpers\UpdateHelper.cs" />
     <Compile Include="Helpers\EnvironmentInfo.cs" />
     <Compile Include="Helpers\GuiRectangle.cs" />
@@ -358,6 +358,12 @@
     <None Include="Languages\language-ru-RU.xml">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>
+    <None Include="Languages\language-sk-SK.xml">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Include="Languages\language-sr-SR.xml">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
     <None Include="Languages\language-sv-SE.xml">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>