diff --git a/src/DataFrame.Formats/DataFrame.Formats.csproj b/src/DataFrame.Formats/DataFrame.Formats.csproj
index a3a2a74..3387365 100644
--- a/src/DataFrame.Formats/DataFrame.Formats.csproj
+++ b/src/DataFrame.Formats/DataFrame.Formats.csproj
@@ -12,8 +12,16 @@
     <Authors></Authors>
     <PackageLicenseUrl></PackageLicenseUrl>
     <RepositoryType></RepositoryType>
+    <PublishRepositoryUrl>true</PublishRepositoryUrl>
+    <IncludeSymbols>true</IncludeSymbols>
+    <SymbolPackageFormat>snupkg</SymbolPackageFormat>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
+  </ItemGroup>
+
+
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
   </PropertyGroup>
diff --git a/src/DataFrame.Math/DataFrame.Math.csproj b/src/DataFrame.Math/DataFrame.Math.csproj
index 6471699..92012d0 100644
--- a/src/DataFrame.Math/DataFrame.Math.csproj
+++ b/src/DataFrame.Math/DataFrame.Math.csproj
@@ -16,7 +16,15 @@
     <PackageIconUrl>http://i.isolineltd.com/nuget/parquet.png</PackageIconUrl>
     <PackageLicenseUrl>https://github.com/elastacloud/parquet-dotnet/blob/master/LICENSE</PackageLicenseUrl>
     <Copyright>Copyright (c) 2017 by Elastacloud Ltd.</Copyright>
+    <PublishRepositoryUrl>true</PublishRepositoryUrl>
+    <IncludeSymbols>true</IncludeSymbols>
+    <SymbolPackageFormat>snupkg</SymbolPackageFormat>
   </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
+  </ItemGroup>
+
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
   </PropertyGroup>