diff --git a/eng/tools/XplatPackageSigner/XplatPackageSigner.proj b/eng/tools/XplatPackageSigner/XplatPackageSigner.proj
index 493b463c48..2d392b5576 100644
--- a/eng/tools/XplatPackageSigner/XplatPackageSigner.proj
+++ b/eng/tools/XplatPackageSigner/XplatPackageSigner.proj
@@ -8,6 +8,7 @@
 <Project DefaultTargets="Build" InitialTargets="CheckForRequiredProperties">
   <PropertyGroup>
     <SignType>$([MSBuild]::ValueOrDefault($(SignType),'real'))</SignType>
+    <OutputInRepoRoot>true</OutputInRepoRoot>
   </PropertyGroup>
 
   <Import Project="..\..\..\Directory.Build.props" />