diff --git a/src/core-sdk-tasks/core-sdk-tasks.csproj b/src/core-sdk-tasks/core-sdk-tasks.csproj
index f1d04cfd4..7b04a4c20 100644
--- a/src/core-sdk-tasks/core-sdk-tasks.csproj
+++ b/src/core-sdk-tasks/core-sdk-tasks.csproj
@@ -4,6 +4,7 @@
     <TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">$(CoreSdkTargetFramework)</TargetFrameworks>
     <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
     <RootNamespace>Microsoft.DotNet.Cli.Build</RootNamespace>
+    <DefineConstants Condition="'$(DotNetBuildFromSource)' == 'true'">$(DefineConstants);SOURCE_BUILD</DefineConstants>
   </PropertyGroup>
 
   <ItemGroup>
@@ -13,7 +14,7 @@
     <PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
     <PackageReference Include="NuGet.Versioning" Version="4.3.0" />
     <PackageReference Include="System.Reflection.Metadata" Version="1.4.2" />
-    <PackageReference Include="WindowsAzure.Storage" Version="8.4.0" />
+    <PackageReference Include="WindowsAzure.Storage" Version="8.4.0" Condition="'$(DotNetBuildFromSource)' != 'true'" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFrameworkIdentifier)' == '.NETFramework'">