diff --git a/eng/Build.ps1 b/eng/Build.ps1
index 08a241c0424..483b60b10df 100644
--- a/eng/Build.ps1
+++ b/eng/Build.ps1
@@ -71,7 +71,7 @@ param (
     [switch]$sourceBuild,
     [switch]$skipBuild,
     [switch]$compressAllMetadata,
-    [switch]$buildnorealsig,
+    [switch]$buildnorealsig = $true,
     [switch]$verifypackageshipstatus = $false,
     [parameter(ValueFromRemainingArguments = $true)][string[]]$properties)
 
diff --git a/eng/build.sh b/eng/build.sh
index da10ebfc4f0..c4abb23f6f1 100755
--- a/eng/build.sh
+++ b/eng/build.sh
@@ -71,7 +71,7 @@ skip_analyzers=false
 skip_build=false
 prepare_machine=false
 source_build=false
-buildnorealsig=false
+buildnorealsig=true
 properties=""
 
 docker=false