diff --git a/src/Microsoft.DotNet.Arcade.Sdk/tools/SourceBuild/SourceBuildArcadeBuild.targets b/src/Microsoft.DotNet.Arcade.Sdk/tools/SourceBuild/SourceBuildArcadeBuild.targets
index 3933e436b87..6159ac4d26c 100644
--- a/src/Microsoft.DotNet.Arcade.Sdk/tools/SourceBuild/SourceBuildArcadeBuild.targets
+++ b/src/Microsoft.DotNet.Arcade.Sdk/tools/SourceBuild/SourceBuildArcadeBuild.targets
@@ -13,6 +13,8 @@
     <InnerSourceBuildRepoRoot Condition="'$(InnerSourceBuildRepoRoot)' == ''">$(CurrentRepoSourceBuildSourceDir)</InnerSourceBuildRepoRoot>
 
     <CleanInnerSourceBuildRepoRoot Condition="'$(CleanInnerSourceBuildRepoRoot)' == ''">true</CleanInnerSourceBuildRepoRoot>
+
+    <FullAssemblySigningSupported Condition="'$(FullAssemblySigningSupported)' == ''">false</FullAssemblySigningSupported>
   </PropertyGroup>
 
   <Target Name="ExecuteWithSourceBuiltTooling"
@@ -87,6 +89,8 @@
 
       <InnerBuildArgs>$(InnerBuildArgs) /p:DotNetBuildOffline=true</InnerBuildArgs>
       <InnerBuildArgs Condition=" '$(DotNetPackageVersionPropsPath)' != '' ">$(InnerBuildArgs) /p:DotNetPackageVersionPropsPath=$(DotNetPackageVersionPropsPath)</InnerBuildArgs>
+
+      <InnerBuildArgs>$(InnerBuildArgs) /p:FullAssemblySigningSupported=$(FullAssemblySigningSupported)</InnerBuildArgs>
     </PropertyGroup>
 
     <ItemGroup>