diff --git a/BookAStar/BookAStar.Droid/BookAStar.Droid.csproj b/BookAStar/BookAStar.Droid/BookAStar.Droid.csproj
index 9719f770..879a8c8a 100644
--- a/BookAStar/BookAStar.Droid/BookAStar.Droid.csproj
+++ b/BookAStar/BookAStar.Droid/BookAStar.Droid.csproj
@@ -357,7 +357,9 @@
   <ItemGroup>
     <AndroidResource Include="Resources\layout\Tabbar.axml" />
     <AndroidResource Include="Resources\layout\Toolbar.axml" />
-    <AndroidResource Include="Resources\values\styles.xml" />
+    <AndroidResource Include="Resources\values\styles.xml">
+      <SubType>Designer</SubType>
+    </AndroidResource>
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\Yavsc.Client\Yavsc.Client.csproj">