diff --git a/Stringify.Library/Stringify.Library.csproj b/Stringify.Library/Stringify.Library.csproj
index 9692c7d..03e6247 100644
--- a/Stringify.Library/Stringify.Library.csproj
+++ b/Stringify.Library/Stringify.Library.csproj
@@ -14,7 +14,15 @@
     <PackageReleaseNotes>Migrated to .Net Standard 1.3</PackageReleaseNotes>
     <RepositoryUrl>https://github.com/nuthim/Stringify</RepositoryUrl>
     <RepositoryType>GitHub</RepositoryType>
-  </PropertyGroup>
+    <PublishRepositoryUrl>true</PublishRepositoryUrl>
+    <IncludeSymbols>true</IncludeSymbols>
+    <SymbolPackageFormat>snupkg</SymbolPackageFormat>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
+  </ItemGroup>
+
 
   <ItemGroup>
     <PackageReference Include="System.ComponentModel" Version="4.3.0" />